Created with Raphaël 2.1.2
0%
2017
20
40
60
80
100
120
140
160
180%
187%
1995
169%
1996
146%
1997
131%
1998
103%
1999
75%
2000
51%
2001
38%
2002
32%
2003
26%
2004
16%
2005
10%
2006
4%
2007
4%
2008
8%
2009
10%
2010
8%
2011
13%
2012
19%
2013
18%
2014
14%
2015
8%
2016
0%
2017