2007

7.6

1936

5.0

1970

8.0

2006

6.0

2000

6.7

1965

7.5

2005

6.7

2007

7.0

2001

6.9

2004

6.3

2005

7.0

1997

7.0

1943

5.4

1953

5.5

2008

6.2

2013

6.1

1969

7.1

1921

6.7

1940

6.0

1945

6.9