1964

7.3

1968

5.8

2006

6.7

2023

6.0

2018

6.6

1967

6.5

1933

5.5

1949

6.7

1953

6.1

2009

6.7

1930

4.7

1964

6.3

1951

6.0

1953

6.3

2005

7.2

1992

6.2

2006

7.5

1945

5.2

1997

8.0

1987

6.8