17.3
5.0
10.0
15.0
20.0
0.0
1994
2.6
1995
2.5
1996
4.2
1997
21.7
1998
6.7
1999
7.8
2000
8.3
2001
9.3
2002
5.8
2003
21.3
2004
9.9
2005
18.3
2006
9.2
2007
7.5
2008
4.1
2009
24.2
2010
3.3
2011
4.2
2012
10.7
2013
4.2
2014
11.7
2015
22.5
2016
11.6
2017
17.3
2018
