- Added solutions by Roger Bell_West.

- Added solutions by Luca Ferrari.
- Added solutions by Thomas Kohler.
- Added solutions by W. Luis Mochan.
- Added solutions by Solathian.
- Added solutions by David Ferrone.
- Added solutions by Robert DiCicco.

25 files changed, 2523 insertions, 2089 deletions

diff --git a/challenge-219/eric-cheung/python/ch-1.py b/challenge-219/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..13c7e71089
--- /dev/null
+++ b/challenge-219/eric-cheung/python/ch-1.py
@@ -0,0 +1,7 @@
+

+## arrInputList = [-2, -1, 0, 3, 4]  ## Example 1

+arrInputList = [5, -4, -1, 3, 6]  ## Example 2

+

+arrOutputList = sorted([nElem * nElem for nElem in arrInputList])

+

+print (arrOutputList)

diff --git a/challenge-219/eric-cheung/python/ch-2.py b/challenge-219/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..e4c1d29724
--- /dev/null
+++ b/challenge-219/eric-cheung/python/ch-2.py
@@ -0,0 +1,60 @@
+

+## Example 1

+## arrCost = [2, 7, 25]

+## arrDays = [1, 5, 6, 7, 9, 15]

+

+## Example 2

+arrCost = [2, 7, 25]

+arrDays = [1, 2, 3, 5, 7, 10, 11, 12, 14, 20, 30, 31]

+

+## Trial 1

+nCost = arrCost[2]

+

+## Trial 2

+nCost = min(nCost, arrCost[0] * len(arrDays))

+

+## Trial 3

+nLoop = 0

+nWeekCount = 0

+while nLoop < len(arrDays):

+    nLoopDay = arrDays[nLoop] + 6

+

+    ## print ("nLoop: " + str(nLoop))

+    ## print ("nLoopDay: " + str(nLoopDay))

+

+    arrSubDay = [nIndx for nIndx, nElem in enumerate(arrDays) if nElem >= nLoopDay]

+

+    if arrSubDay == []:

+        nWeekCount = nWeekCount + 1

+        break

+

+    nFindIndx = min(arrSubDay)

+    nShiftIndx = (1 if arrDays[nFindIndx] == nLoopDay else 0)

+    nLoop = nShiftIndx + nFindIndx

+    nWeekCount = nWeekCount + 1

+

+    ## print ("nWeekCount: " + str(nWeekCount))

+    ## print ("")

+

+

+## print (nWeekCount)

+nCost = min(nCost, arrCost[1] * nWeekCount)

+

+## Trial 4

+nLoop = 1

+nIndx = 0

+while nLoop < nWeekCount:

+    nLoopDay = arrDays[nIndx] + 6

+    arrSubDay = [nIndx for nIndx, nElem in enumerate(arrDays) if nElem >= nLoopDay]

+

+    if arrSubDay == []:

+        break

+

+    nFindIndx = min(arrSubDay)

+    nShiftIndx = (1 if arrDays[nFindIndx] == nLoopDay else 0)

+    nIndx = nShiftIndx + nFindIndx

+    nRemain = len(arrSubDay) - nShiftIndx

+    nCost = min(nCost, arrCost[1] * nLoop + arrCost[0] * nRemain)

+    nLoop = nLoop + 1

+

+print (nCost)

diff --git a/challenge-219/jeanluc2020/blog-1.txt b/challenge-219/jeanluc2020/blog.txt
index 49272dae95..49272dae95 100644
--- a/challenge-219/jeanluc2020/blog-1.txt
+++ b/challenge-219/jeanluc2020/blog.txt
diff --git a/challenge-219/jeanluc2020/blog-2.txt b/challenge-219/jeanluc2020/blog1.txt
index c047a2bc98..c047a2bc98 100644
--- a/challenge-219/jeanluc2020/blog-2.txt
+++ b/challenge-219/jeanluc2020/blog1.txt
diff --git a/challenge-219/robert-dicicco/julia/ch-1.jl b/challenge-219/robert-dicicco/julia/ch-1.jl
new file mode 100644
index 0000000000..fb98a5a260
--- /dev/null
+++ b/challenge-219/robert-dicicco/julia/ch-1.jl
@@ -0,0 +1,35 @@
+#!/usr/bin/env julia
+using Printf
+#=
+--------------------------------------
+AUTHOR: Robert DiCicco
+DATE  : 2023-05-29
+Challenge 219 Sorted Squares Task 1 ( Julia )
+--------------------------------------
+=#
+
+list = [[-2, -1, 0, 3, 4],
+       [5, -4, -1, 3, 6]
+      ];
+
+for lst in list
+    @printf("Input: @list = %s\n",lst)
+    lst = map((x) -> x ^ 2, lst)
+    @printf("%s\n\n",sort(lst))
+end
+
+#=
+--------------------------------------
+SAMPLE OUTPUT
+julia .\SortedSquares.jl
+
+Input: @list = [-2, -1, 0, 3, 4]
+[0, 1, 4, 9, 16]
+
+Input: @list = [5, -4, -1, 3, 6]
+[1, 9, 16, 25, 36]
+
+--------------------------------------
+=#
+
+
diff --git a/challenge-219/robert-dicicco/perl/ch-1.pl b/challenge-219/robert-dicicco/perl/ch-1.pl
new file mode 100644
index 0000000000..0a0ef3c52a
--- /dev/null
+++ b/challenge-219/robert-dicicco/perl/ch-1.pl
@@ -0,0 +1,38 @@
+#!usr/bin/env perl
+use strict;
+use warnings;
+use feature 'say';
+=begin comment
+--------------------------------------
+AUTHOR: Robert DiCicco
+DATE  : 2023-05-29
+Challenge 219 Sorted Squares Task 1 ( Perl )
+--------------------------------------
+=cut
+
+my @list = ([-2, -1, 0, 3, 4],
+            [5, -4, -1, 3, 6]
+            );
+my $cnt = (scalar @list) ;
+
+while ($cnt--) {
+    say "Input: \@list = [@{$list[$cnt]}]";
+    my @squared_array = map { $_ ** 2 } @{$list[$cnt]};
+    my @sorted = sort { $a <=> $b } @squared_array;
+    print "Output: ",join(", ", @sorted), "\n\n";
+}
+
+=begin comment
+--------------------------------------
+SAMPLE OUTPUT
+
+perl .\SortedSquares.pl
+Input: @list = [5 -4 -1 3 6]
+Output: 1, 9, 16, 25, 36
+
+Input: @list = [-2 -1 0 3 4]
+Output: 0, 1, 4, 9, 16
+--------------------------------------
+=cut
+
+
diff --git a/challenge-219/robert-dicicco/python/ch-1.py b/challenge-219/robert-dicicco/python/ch-1.py
new file mode 100644
index 0000000000..8823416047
--- /dev/null
+++ b/challenge-219/robert-dicicco/python/ch-1.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+#--------------------------------------
+# AUTHOR: Robert DiCicco
+# DATE  : 2023-05-29
+# Challenge 219 Sorted Squares Task 1 ( Python )
+#--------------------------------------
+
+mylist = [[-2, -1, 0, 3, 4],
+       [5, -4, -1, 3, 6]
+      ];
+
+for lst in mylist:
+    print("Input: @list = ",lst)
+    print(sorted(list(map(lambda x: x * x, lst))),"\n")
+
+#--------------------------------------
+# SORTED OUTPUT
+# python .\SortedSquares.py
+
+# Input: @list =  [-2, -1, 0, 3, 4]
+# [0, 1, 4, 9, 16]
+
+# Input: @list =  [5, -4, -1, 3, 6]
+# [1, 9, 16, 25, 36]
+
+#--------------------------------------
+
+
diff --git a/challenge-219/robert-dicicco/raku/ch-1.raku b/challenge-219/robert-dicicco/raku/ch-1.raku
new file mode 100644
index 0000000000..b844b85645
--- /dev/null
+++ b/challenge-219/robert-dicicco/raku/ch-1.raku
@@ -0,0 +1,35 @@
+#!/usr/bin/env raku
+=begin comment
+--------------------------------------
+AUTHOR: Robert DiCicco
+DATE  : 2023-05-29
+Challenge 219 Sorted Squares Task 1 ( Raku )
+--------------------------------------
+=end comment
+use v6;
+
+my @list = ([-2, -1, 0, 3, 4],
+            [5, -4, -1, 3, 6]
+            );
+my $cnt = @list.elems ;
+
+for (@list) -> @lst {
+    say "Input: \@list = ",@lst;
+    my @squared_array = map(-> $x {$x ** 2},@lst).sort.join(',');
+    say "Output: ",@squared_array,"\n";
+}
+
+=begin comment
+--------------------------------------
+SAMPLE OUTPUT
+raku .\SortedSquares.rk
+
+Input: @list = [-2 -1 0 3 4]
+Output: [0,1,4,9,16]
+
+Input: @list = [5 -4 -1 3 6]
+Output: [1,9,16,25,36]
+--------------------------------------
+=end comment
+
+
diff --git a/challenge-219/robert-dicicco/ruby/ch-1.rb b/challenge-219/robert-dicicco/ruby/ch-1.rb
new file mode 100644
index 0000000000..3c4fa8ceeb
--- /dev/null
+++ b/challenge-219/robert-dicicco/ruby/ch-1.rb
@@ -0,0 +1,34 @@
+#!/usr/bin/env ruby
+=begin
+--------------------------------------
+AUTHOR: Robert DiCicco
+DATE  : 2023-05-29
+Challenge 219 Sorted Squares Task 1 ( Ruby )
+--------------------------------------
+=end
+
+list = [[-2, -1, 0, 3, 4],
+        [5, -4, -1, 3, 6]
+       ];
+
+list.each do |lst|
+    puts("Input: @list = #{lst}")
+    lst = lst.map { |val| val ** 2 }
+    puts("#{lst.sort}\n\n")
+end
+
+=begin
+--------------------------------------
+SAMPLE OUTPUT
+ruby .\SortedSquares.rb
+
+Input: @list = [-2, -1, 0, 3, 4]
+[0, 1, 4, 9, 16]
+
+Input: @list = [5, -4, -1, 3, 6]
+[1, 9, 16, 25, 36]
+
+--------------------------------------
+=end
+
+
diff --git a/stats/pwc-challenge-218.json b/stats/pwc-challenge-218.json
new file mode 100644
index 0000000000..b07a6d1a61
--- /dev/null
+++ b/stats/pwc-challenge-218.json
@@ -0,0 +1,582 @@
+{
+   "subtitle" : {
+      "text" : "[Champions: 30] Last updated at 2023-05-30 09:44:44 GMT"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "series" : [
+      {
+         "data" : [
+            {
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Athanasius",
+               "name" : "Athanasius"
+            },
+            {
+               "drilldown" : "Avery Adams",
+               "name" : "Avery Adams",
+               "y" : 3
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+            {
+               "y" : 2,
+               "name" : "BarrOff",
+               "drilldown" : "BarrOff"
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+            {
+               "drilldown" : "Bruce Gray",
+               "name" : "Bruce Gray",
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+            },
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+               "drilldown" : "Cheok-Yin Fung",
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+               "drilldown" : "David Ferrone",
+               "name" : "David Ferrone"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "E. Choroba",
+               "name" : "E. Choroba"
+            },
+            {
+               "drilldown" : "Flavio Poletti",
+               "name" : "Flavio Poletti",
+               "y" : 6
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "drilldown" : "Jaldhar H. Vyas",
+               "y" : 5
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Jan Krnavek",
+               "name" : "Jan Krnavek"
+            },
+            {
+               "y" : 2,
+               "name" : "Jorg Sommrey",
+               "drilldown" : "Jorg Sommrey"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld"
+            },
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+               "drilldown" : "Lubos Kolouch",
+               "name" : "Lubos Kolouch"
+            },
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+               "y" : 2,
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson"
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Matthias Muth",
+               "name" : "Matthias Muth"
+            },
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+               "name" : "Niels van Dijke"
+            },
+            {
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+               "name" : "Paulo Custodio",
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+            {
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+               "name" : "Peter Campbell Smith",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Robbie Hatley",
+               "name" : "Robbie Hatley"
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+               "y" : 4
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+               "name" : "Robert Ransbottom",
+               "drilldown" : "Robert Ransbottom"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West"
+            },
+            {
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+               "drilldown" : "Simon Green",
+               "y" : 3
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+               "drilldown" : "Solathian"
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+               "name" : "Stephen G. Lynn"
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+            {
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+               "name" : "Steven Wilson",
+               "drilldown" : "Steven Wilson"
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+               "drilldown" : "Thomas Kohler",
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+               "drilldown" : "Ulrich Rieke",
+               "name" : "Ulrich Rieke"
+            },
+            {
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+               "drilldown" : "W. Luis Mochan",
+               "name" : "W. Luis Mochan"
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+   },
+   "xAxis" : {
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+            "data" : [
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+                  "Perl",
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+         },
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+               ],
+               [
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+                  2
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+                  2
+               ]
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+         },
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+                  "Blog",
+                  1
+               ]
+            ],
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+            "id" : "Jaldhar H. Vyas"
+         },
+         {
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+                  1
+               ]
+            ],
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+            "name" : "Jan Krnavek"
+         },
+         {
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+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Jorg Sommrey"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
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+            "name" : "Laurent Rosenfeld"
+         },
+         {
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+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Lubos Kolouch"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
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+            "name" : "Mark Anderson"
+         },
+         {
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+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
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+            "id" : "Matthias Muth"
+         },
+         {
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+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Niels van Dijke"
+         },
+         {
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+            "data" : [
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+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Paulo Custodio"
+         },
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+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
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+            "name" : "Peter Campbell Smith"
+         },
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+                  2
+               ],
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+                  "Raku",
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+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Roger Bell_West"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Simon Green",
+            "name" : "Simon Green"
+         },
+         {
+            "id" : "Solathian",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ],
+            "name" : "Solathian"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
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+               [
+                  "Blog",
+                  1
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+            ],
+            "name" : "Stephen G. Lynn",
+            "id" : "Stephen G. Lynn"
+         },
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+            "data" : [
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+                  1
+               ]
+            ],
+            "id" : "Steven Wilson",
+            "name" : "Steven Wilson"
+         },
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+                  2
+               ],
+               [
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+               ]
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+            "id" : "Thomas Kohler"
+         },
+         {
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+            "data" : [
+               [
+                  "Perl",
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+               ],
+               [
+                  "Raku",
+                  1
+               ]
+            ],
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+         },
+         {
+            "id" : "W. Luis Mochan",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
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+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "W. Luis Mochan"
+         }
+      ]
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   }
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index bfa4903fb6..9e922d8cb6 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,319 +1,95 @@
 {
+   "tooltip" : {
+      "followPointer" : 1,
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "series" : [
       {
-         "name" : "The Weekly Challenge - 218",
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 219",
          "data" : [
             {
-               "y" : 3,
-               "drilldown" : "Arne Sommer",
-               "name" : "Arne Sommer"
-            },
-            {
                "y" : 2,
-               "drilldown" : "Athanasius",
-               "name" : "Athanasius"
-            },
-            {
-               "drilldown" : "Avery Adams",
-               "y" : 3,
-               "name" : "Avery Adams"
-            },
-            {
-               "name" : "BarrOff",
-               "drilldown" : "BarrOff",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Bruce Gray",
-               "y" : 2,
-               "name" : "Bruce Gray"
-            },
-            {
-               "name" : "Cheok-Yin Fung",
-               "drilldown" : "Cheok-Yin Fung",
-               "y" : 2
-            },
-            {
                "drilldown" : "David Ferrone",
-               "y" : 2,
                "name" : "David Ferrone"
             },
             {
-               "name" : "E. Choroba",
-               "drilldown" : "E. Choroba",
-               "y" : 2
-            },
-            {
-               "name" : "Flavio Poletti",
-               "drilldown" : "Flavio Poletti",
-               "y" : 6
-            },
-            {
-               "name" : "Jaldhar H. Vyas",
-               "drilldown" : "Jaldhar H. Vyas",
-               "y" : 5
-            },
-            {
-               "drilldown" : "Jan Krnavek",
-               "y" : 1,
-               "name" : "Jan Krnavek"
+               "y" : 8,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
             },
             {
                "y" : 2,
-               "drilldown" : "Jorg Sommrey",
-               "name" : "Jorg Sommrey"
+               "name" : "Robert DiCicco",
+               "drilldown" : "Robert DiCicco"
             },
             {
                "y" : 4,
-               "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld"
-            },
-            {
-               "name" : "Lubos Kolouch",
-               "y" : 2,
-               "drilldown" : "Lubos Kolouch"
-            },
-            {
-               "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Matthias Muth",
-               "y" : 3,
-               "name" : "Matthias Muth"
-            },
-            {
-               "name" : "Niels van Dijke",
-               "y" : 2,</