2010
6.1
6.1
2009
5.6
2009
6.1
2007
5.7
2009
6.5
2008
6.5
2010
6.2
2008
6.5
2010
5.9
2010
6.3
2010
6.4
2010
5.9
6.1 5.6 6.1 5.7 6.5 6.5 6.2 6.5 5.9 6.3 6.4 5.9 6.1 5.6 6.1 5.7 6.5 6.5 6.2 6.5 5.9 6.3 6.4 5.9