Created with Raphaël 2.1.2
7
2
4
6
8
10
12
14
3
1992
0
1993
0
1994
3
1995
2
1996
3
1997
0
1998
1
1999
0
2000
3
2001
3
2002
1
2003
0
2004
0
2005
1
2006
2
2007
14
2008
9
2009
1
2010
0
2011
8
2012
0
2013
2
2014
2
2015
7
2016