1931

7.2

1958

7.6

1984

8.0

1998

7.4

2003

5.9

1957

8.5

1966

7.7

1933

6.0

1941

7.3

1939

8.0

1992

7.5

1929

7.5

1932

7.4

1922

5.8

1974

7.0

2026

0.0

2005

4.9

2005

6.7

1961

7.2

2005

6.8