1953

0.0

1976

6.6

1930

6.2

1965

6.0

1938

6.6

1948

5.9

1932

6.1

1949

0.0

1963

6.7

1995

8.5

1974

6.8

1988

7.1

1980

6.0

1981

7.0

1997

8.0

1935

7.0

1939

6.2

1995

5.9

1972

6.2

2006

6.3