1924

8.1

1940

4.4

2005

6.9

1968

7.3

1961

7.3

1963

7.0

1964

7.0

1964

7.0

2000

7.1

1947

6.7

2002

5.3

1997

5.0

2002

6.1

2007

4.6

2023

5.7

1936

6.2

1932

5.6

1942

6.5

1985

5.0

1943

6.0