1957

8.2

1966

8.0

1953

5.9

2010

6.4

1967

6.2

2001

7.0

1967

7.9

1968

7.0

2004

6.4

1964

6.6

1988

6.8

2021

7.4

1961

6.9

2006

5.8

1986

7.5

2021

6.5

1982

6.0

2014

5.3

2006

6.7

2007

6.3