Created with Raphaël 2.1.2
36.6
2018
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
51.5
2009
46.1
2010
40.7
2011
37.8
2012
38.7
2013
37.4
2014
35.0
2015
35.1
2016
34.6
2017
36.6
2018