- Added solutions to week 4 by Lakpa Tashi Bhutia.

14 files changed, 1589 insertions, 1574 deletions

diff --git a/stats/pwc-challenge-004.json b/stats/pwc-challenge-004.json
index b473c59bfa..b0c973ac29 100644
--- a/stats/pwc-challenge-004.json
+++ b/stats/pwc-challenge-004.json
@@ -1,21 +1,230 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "subtitle" : {
+      "text" : "[Champions: 38] Last updated at 2021-04-14 11:01:44 GMT"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 004",
+         "data" : [
+            {
+               "drilldown" : "Abigail",
+               "name" : "Abigail",
+               "y" : 2
+            },
+            {
+               "name" : "Adam Russell",
+               "drilldown" : "Adam Russell",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Alicia Bielsa",
+               "name" : "Alicia Bielsa",
+               "y" : 2
+            },
+            {
+               "name" : "Andrezgz",
+               "drilldown" : "Andrezgz",
+               "y" : 2
+            },
+            {
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer",
+               "y" : 3
+            },
+            {
+               "name" : "Athanasius",
+               "drilldown" : "Athanasius",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Daniel Mantovani",
+               "name" : "Daniel Mantovani",
+               "y" : 1
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Doug Schrag",
+               "name" : "Doug Schrag"
+            },
+            {
+               "drilldown" : "Duncan C. White",
+               "name" : "Duncan C. White",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "name" : "Francis Whittle",
+               "drilldown" : "Francis Whittle"
+            },
+            {
+               "drilldown" : "Gustavo Chaves",
+               "name" : "Gustavo Chaves",
+               "y" : 3
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "drilldown" : "Jaldhar H. Vyas",
+               "y" : 4
+            },
+            {
+               "y" : 4,
+               "drilldown" : "James Smith",
+               "name" : "James Smith"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Jo Christian Oterhals",
+               "name" : "Jo Christian Oterhals"
+            },
+            {
+               "drilldown" : "Joelle Maslak",
+               "name" : "Joelle Maslak",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "name" : "John Barrett",
+               "drilldown" : "John Barrett"
+            },
+            {
+               "name" : "Kian-Meng Ang",
+               "drilldown" : "Kian-Meng Ang",
+               "y" : 3
+            },
+            {
+               "name" : "Kivanc Yazan",
+               "drilldown" : "Kivanc Yazan",
+               "y" : 1
+            },
+            {
+               "y" : 2,
+               "name" : "Lakpa Tashi Bhutia",
+               "drilldown" : "Lakpa Tashi Bhutia"
+            },
+            {
+               "name" : "Lars Balker",
+               "drilldown" : "Lars Balker",
+               "y" : 2
+            },
+            {
+               "y" : 6,
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld"
+            },
+            {
+               "y" : 3,
+               "name" : "Mark Senn",
+               "drilldown" : "Mark Senn"
+            },
+            {
+               "drilldown" : "Matt Latusek",
+               "name" : "Matt Latusek",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Maxim Kolodyazhny",
+               "name" : "Maxim Kolodyazhny"
+            },
+            {
+               "drilldown" : "Neil Bowers",
+               "name" : "Neil Bowers",
+               "y" : 1
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Nick Logan",
+               "name" : "Nick Logan"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Pablo Saavedra",
+               "name" : "Pablo Saavedra"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Paulo Custodio",
+               "name" : "Paulo Custodio"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Robert Gratza",
+               "name" : "Robert Gratza"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Ruben Westerberg",
+               "name" : "Ruben Westerberg"
+            },
+            {
+               "drilldown" : "Ryan Thompson",
+               "name" : "Ryan Thompson",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Sergio Iglesias",
+               "name" : "Sergio Iglesias"
+            },
+            {
+               "y" : 3,
+               "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor"
+            },
+            {
+               "y" : 2,
+               "name" : "Stuart Little",
+               "drilldown" : "Stuart Little"
+            },
+            {
+               "y" : 2,
+               "name" : "Tim Smith",
+               "drilldown" : "Tim Smith"
+            },
+            {
+               "name" : "Veesh Goldman",
+               "drilldown" : "Veesh Goldman",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Yary Hluchan",
+               "name" : "Yary Hluchan",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Yet Ebreo",
+               "name" : "Yet Ebreo",
+               "y" : 2
+            }
+         ]
+      }
+   ],
+   "plotOptions" : {
+      "series" : {
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+         "dataLabels" : {
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+            "format" : "{point.y}"
+         }
+      }
    },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Abigail",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Abigail"
+            "name" : "Abigail",
+            "id" : "Abigail"
          },
          {
-            "id" : "Adam Russell",
             "data" : [
                [
                   "Perl",
@@ -26,16 +235,17 @@
                   1
                ]
             ],
-            "name" : "Adam Russell"
+            "name" : "Adam Russell",
+            "id" : "Adam Russell"
          },
          {
+            "id" : "Alicia Bielsa",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Alicia Bielsa",
             "name" : "Alicia Bielsa"
          },
          {
@@ -49,6 +259,7 @@
             "id" : "Andrezgz"
          },
          {
+            "name" : "Arne Sommer",
             "data" : [
                [
                   "Raku",
@@ -59,8 +270,7 @@
                   1
                ]
             ],
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer"
+            "id" : "Arne Sommer"
          },
          {
             "name" : "Athanasius",
@@ -83,8 +293,8 @@
             "name" : "Daniel Mantovani"
          },
          {
-            "name" : "Doug Schrag",
             "id" : "Doug Schrag",
+            "name" : "Doug Schrag",
             "data" : [
                [
                   "Raku",
@@ -104,7 +314,6 @@
          },
          {
             "name" : "Francis Whittle",
-            "id" : "Francis Whittle",
             "data" : [
                [
                   "Raku",
@@ -114,7 +323,8 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Francis Whittle"
          },
          {
             "name" : "Gustavo Chaves",
@@ -131,8 +341,8 @@
             "id" : "Gustavo Chaves"
          },
          {
-            "name" : "Jaldhar H. Vyas",
             "id" : "Jaldhar H. Vyas",
+            "name" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
@@ -145,7 +355,7 @@
             ]
          },
          {
-            "id" : "James Smith",
+            "name" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -156,10 +366,11 @@
                   2
                ]
             ],
-            "name" : "James Smith"
+            "id" : "James Smith"
          },
          {
             "id" : "Jo Christian Oterhals",
+            "name" : "Jo Christian Oterhals",
             "data" : [
                [
                   "Perl",
@@ -173,11 +384,10 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Jo Christian Oterhals"
+            ]
          },
          {
-            "name" : "Joelle Maslak",
+            "id" : "Joelle Maslak",
             "data" : [
                [
                   "Perl",
@@ -188,17 +398,17 @@
                   2
                ]
             ],
-            "id" : "Joelle Maslak"
+            "name" : "Joelle Maslak"
          },
          {
             "name" : "John Barrett",
-            "id" : "John Barrett",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "John Barrett"
          },
          {
             "id" : "Kian-Meng Ang",
@@ -215,28 +425,37 @@
             "name" : "Kian-Meng Ang"
          },
          {
-            "name" : "Kivanc Yazan",
-            "id" : "Kivanc Yazan",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Kivanc Yazan",
+            "id" : "Kivanc Yazan"
          },
          {
-            "id" : "Lars Balker",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Lars Balker"
+            "name" : "Lakpa Tashi Bhutia",
+            "id" : "Lakpa Tashi Bhutia"
+         },
+         {
+            "name" : "Lars Balker",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Lars Balker"
          },
          {
             "name" : "Laurent Rosenfeld",
-            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -250,7 +469,8 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Laurent Rosenfeld"
          },
          {
             "id" : "Mark Senn",
@@ -267,24 +487,24 @@
             "name" : "Mark Senn"
          },
          {
-            "name" : "Matt Latusek",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Matt Latusek",
             "id" : "Matt Latusek"
          },
          {
             "name" : "Maxim Kolodyazhny",
-            "id" : "Maxim Kolodyazhny",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Maxim Kolodyazhny"
          },
          {
             "data" : [
@@ -293,11 +513,12 @@
                   1
                ]
             ],
-            "id" : "Neil Bowers",
-            "name" : "Neil Bowers"
+            "name" : "Neil Bowers",
+            "id" : "Neil Bowers"
          },
          {
             "id" : "Nick Logan",
+            "name" : "Nick Logan",
             "data" : [
                [
                   "Perl",
@@ -307,42 +528,40 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Nick Logan"
+            ]
          },
          {
-            "name" : "Pablo Saavedra",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Pablo Saavedra",
             "id" : "Pablo Saavedra"
          },
          {
             "id" : "Paulo Custodio",
+            "name" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Paulo Custodio"
+            ]
          },
          {
             "id" : "Robert Gratza",
+            "name" : "Robert Gratza",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Robert Gratza"
+            ]
          },
          {
             "name" : "Ruben Westerberg",
-            "id" : "Ruben Westerberg",
             "data" : [
                [
                   "Perl",
@@ -352,11 +571,12 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Ruben Westerberg"
          },
          {
-            "name" : "Ryan Thompson",
             "id" : "Ryan Thompson",
+            "name" : "Ryan Thompson",
             "data" : [
                [
                   "Perl",
@@ -369,17 +589,18 @@
             ]
          },
          {
+            "id" : "Sergio Iglesias",
+            "name" : "Sergio Iglesias",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Sergio Iglesias",
-            "name" : "Sergio Iglesias"
+            ]
          },
          {
             "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
@@ -389,18 +610,17 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Simon Proctor"
+            ]
          },
          {
-            "name" : "Stuart Little",
-            "id" : "Stuart Little",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Stuart Little",
+            "id" : "Stuart Little"
          },
          {
             "data" : [
@@ -409,18 +629,18 @@
                   2
                ]
             ],
-            "id" : "Tim Smith",
-            "name" : "Tim Smith"
+            "name" : "Tim Smith",
+            "id" : "Tim Smith"
          },
          {
-            "id" : "Veesh Goldman",
+            "name" : "Veesh Goldman",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Veesh Goldman"
+            "id" : "Veesh Goldman"
          },
          {
             "name" : "Yary Hluchan",
@@ -437,239 +657,34 @@
             "id" : "Yary Hluchan"
          },
          {
-            "name" : "Yet Ebreo",
+            "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Yet Ebreo"
+            "name" : "Yet Ebreo"
          }
       ]
    },
-   "tooltip" : {
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1,
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>"
-   },
    "title" : {
       "text" : "Perl Weekly Challenge - 004"
    },
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1,
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
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-   "subtitle" : {
-      "text" : "[Champions: 37] Last updated at 2021-03-07 09:27:21 GMT"
-   },
-   "chart" : {
-      "type" : "column"
+   "xAxis" : {
+      "type" : "category"
    },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
-   },
-   "plotOptions" : {
-      "series" : {
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-               "drilldown" : "Adam Russell",
-               "y" : 3
-            },
-            {
-               "name" : "Alicia Bielsa",
-               "drilldown" : "Alicia Bielsa",
-               "y" : 2
-            },
-            {
-               "name" : "Andrezgz",
-               "drilldown" : "Andrezgz",
-               "y" : 2
-            },
-            {
-               "name" : "Arne Sommer",
-               "drilldown" : "Arne Sommer",
-               "y" : 3
-            },
-            {
-               "name" : "Athanasius",
-               "drilldown" : "Athanasius",
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-            },
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-               "drilldown" : "Daniel Mantovani",
-               "y" : 1
-            },
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-               "y" : 2,
-               "name" : "Doug Schrag",
-               "drilldown" : "Doug Schrag"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Duncan C. White",
-               "name" : "Duncan C. White"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Francis Whittle",
-               "name" : "Francis Whittle"
-            },
-            {
-               "y" : 3,
-               "name" : "Gustavo Chaves",
-               "drilldown" : "Gustavo Chaves"
-            },
-            {
-               "name" : "Jaldhar H. Vyas",
-               "drilldown" : "Jaldhar H. Vyas",
-               "y" : 4
-            },
-            {
-               "y" : 4,
-               "drilldown" : "James Smith",
-               "name" : "James Smith"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Jo Christian Oterhals",
-               "name" : "Jo Christian Oterhals"
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Joelle Maslak",
-               "name" : "Joelle Maslak"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "John Barrett",
-               "name" : "John Barrett"
-            },
-            {
-               "drilldown" : "Kian-Meng Ang",
-               "name" : "Kian-Meng Ang",
-               "y" : 3
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-               "drilldown" : "Kivanc Yazan",
-               "name" : "Kivanc Yazan",
-               "y" : 1
-            },
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-               "drilldown" : "Lars Balker",
-               "name" : "Lars Balker"
-            },
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-               "drilldown" : "Mark Senn"
-            },
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-               "name" : "Matt Latusek",
-               "drilldown" : "Matt Latusek",
-               "y" : 2
-            },
-            {
-               "name" : "Maxim Kolodyazhny",
-               "drilldown" : "Maxim Kolodyazhny",
-               "y" : 2
-            },
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-               "y" : 1,
-               "drilldown" : "Neil Bowers",
-               "name" : "Neil Bowers"
-            },
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-               "name" : "Nick Logan",
-               "drilldown" : "Nick Logan"
-            },
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-               "drilldown" : "Pablo Saavedra",
-               "name" : "Pablo Saavedra",
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-               "drilldown" : "Paulo Custodio"
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-               "name" : "Robert Gratza",
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-               "drilldown" : "Ruben Westerberg",
-               "name" : "Ruben Westerberg"
-            },
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-               "name" : "Ryan Thompson",
-               "drilldown" : "Ryan Thompson"
-            },
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-               "name" : "Sergio Iglesias",
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-            },
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-               "drilldown" : "Stuart Little",
-               "y" : 2
-            },
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-               "y" : 2,
-               "name" : "Tim Smith",
-               "drilldown" : "Tim Smith"
-            },
-            {
-               "y" : 2,
-               "name" : "Veesh Goldman",
-               "drilldown" : "Veesh Goldman"
-            },
-            {
-               "drilldown" : "Yary Hluchan",
-               "name" : "Yary Hluchan",
-               "y" : 2
-            },
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-               "drilldown" : "Yet Ebreo",
-               "y" : 2
-            }
-         ],
-         "name" : "Perl Weekly Challenge - 004",
-         "colorByPoint" : 1
-      }
-   ]
+   }
 }
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 2750b9047c..1a3d5ef2b7 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,83 +1,39 @@
 {
+   "tooltip" : {
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
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+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
    "title" : {
       "text" : "Perl Weekly Challenge - 108"
    },
+   "subtitle" : {
+      "text" : "[Champions: 12] Last updated at 2021-04-14 11:02:02 GMT"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "series" : [
-      {
-         "colorByPoint" : 1,
-         "name" : "Perl Weekly Challenge - 108",
-         "data" : [
-            {
-               "name" : "Aaron Smith",
-               "y" : 3,
-               "drilldown" : "Aaron Smith"
-            },
-            {
-               "name" : "Cheok-Yin Fung",
-               "drilldown" : "Cheok-Yin Fung",
-               "y" : 1
-            },
-            {
-               "name" : "E. Choroba",
-               "drilldown" : "E. Choroba",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Jorg Sommrey",
-               "name" : "Jorg Sommrey"
-            },
-            {
-               "name" : "Laurent Rosenfeld",
-               "drilldown" : "Laurent Rosenfeld",
-               "y" : 5
-            },
-            {
-               "drilldown" : "Luca Ferrari",
-               "y" : 4,
-               "name" : "Luca Ferrari"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West"
-            },
-            {
-               "y" : 1,
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor"
-            },
-            {
-               "name" : "Stuart Little",
-               "y" : 4,
-               "drilldown" : "Stuart Little"
-            },
-            {
-               "drilldown" : "Ulrich Rieke",
-               "y" : 4,
-               "name" : "Ulrich Rieke"
-            },
-            {
-               "name" : "W. Luis Mochan",
-               "y" : 3,
-               "drilldown" : "W. Luis Mochan"
-            }
-         ]
-      }
-   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Aaron Smith",
             "data" : [
                [
                   "Raku",
@@ -88,18 +44,17 @@
                   1
                ]
             ],
-            "name" : "Aaron Smith",
-            "id" : "Aaron Smith"
+            "name" : "Aaron Smith"
          },
          {
-            "name" : "Cheok-Yin Fung",
             "id" : "Cheok-Yin Fung",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Cheok-Yin Fung"
          },
          {
             "id" : "E. Choroba",
@@ -112,16 +67,17 @@
             ]
          },
          {
+            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Jorg Sommrey",
             "name" : "Jorg Sommrey"
          },
          {
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -136,11 +92,9 @@
                   1
                ]
             ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
+            "id" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Luca Ferrari",
             "name" : "Luca Ferrari",
             "data" : [
                [
@@ -151,21 +105,20 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Luca Ferrari"
          },
          {
-            "id" : "Mark Anderson",
-            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson"
          },
          {
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -179,17 +132,19 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          },
          {
-            "id" : "Simon Proctor",
-            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   1
                ]
-            ]
+            ],
+            "name" : "Simon Proctor",
+            "id" : "Simon Proctor"
          },
          {
             "id" : "Stuart Little",
@@ -206,6 +161,7 @@
             ]
          },
          {
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -216,12 +172,9 @@
                   2
                ]
             ],
-            "name" : "Ulrich Rieke",
             "id" : "Ulrich Rieke"
          },
          {
-            "id" : "W. Luis Mochan",
-            "name" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -231,34 +184,81 @@
                   "Blog",
                   1
                ]
-            ]