Created with Raphaël 2.1.2
67%
2017
10
20
30
40
50
60%
28%
2006
36%
2007
37%
2008
40%
2009
43%
2010
48%
2011
48%
2012
51%
2013
51%
2014
53%
2015
62%
2016
67%
2017