2008
6.8
6.8
2012
6.9
2010
7.2
2010
6.2
2006
6.9
2010
6.1
2003
6.8
2006
6.6
2009
6.5
2010
7.8
2010
4.7
2010
6.2
6.8 6.9 7.2 6.2 6.9 6.1 6.8 6.6 6.5 7.8 4.7 6.2 6.8 6.9 7.2 6.2 6.9 6.1 6.8 6.6 6.5 7.8 4.7 6.2