2005

5.4

2013

6.0

1962

7.7

2010

7.8

2006

7.0

1950

8.3

1985

6.4

1962

7.6

2010

6.0

2012

6.6

1940

7.9

1985

6.2

1961

8.1

2010

7.4

2001

6.4

1943

7.6

2013

6.6

1996

8.0

1978

7.5

2010

7.7