2009

5.7

2010

7.2

2007

6.9

2000

6.4

2006

6.0

2011

6.7

2007

7.3

2004

7.5

2011

7.5

2001

6.3

2016

6.4

2003

5.9

2015

6.2

2008

7.4

2010

6.7

2011

5.7

2002

6.1

1953

7.2

2013

5.3

2013

6.9