1997

7.4

1986

7.5

1953

8.0

1955

7.5

1940

7.9

1983

7.2

1930

7.3

1986

7.8

1972

8.7

1974

8.6

2002

6.7

2005

6.7

1978

0.0

1932

7.4

1996

6.5

1956

7.9

1967

7.7

1965

7.5

1957

8.3

1990

5.3