1929

6.6

1968

6.0

1978

7.4

1953

7.7

1934

5.0

1944

6.8

1967

7.3

1940

6.0

1960

5.4

2011

8.8

1990

7.3

1980

6.3

1950

7.7

1981

7.2

1993

6.9

1952

0.0

1938

6.0

1930

5.0

1978

6.6

1975

10.0