2009 7.0

2011 5.1

1995 8.3

2008 6.5

2011 7.3

2010 7.7

2008 6.1

1999 7.2

2011 6.4

2009 6.5

2011 5.4

2006 8.5

2003 5.3

2010 7.1

2011 3.4

2008 6.7

1995 6.3

2008 7.9

2006 7.7

2008 6.7

2011 6.2

2011 5.2

2008 6.5

2011 5.8

2001 6.2

2008 6.3

2010 6.6

2003 7.0

2011 5.7

2011 7.1