Created with Raphaël 2.1.2
20
2016
5
10
15
20
25
30
1
1996
3
1997
2
1998
8
1999
12
2000
20
2001
19
2002
18
2003
27
2004
34
2005
30
2006
9
2007
11
2008
24
2009
27
2010
26
2011
24
2012
25
2013
23
2014
6
2015
20
2016