1968

6.0

1978

7.4

1953

7.7

1967

7.3

1956

6.6

1940

6.0

1996

6.7

1960

5.4

2011

8.8

1990

7.3

1980

6.3

1975

7.5

1950

7.7

1993

6.9

1952

0.0

1938

6.0

1978

6.6

1932

6.0

1931

4.0

2009

2.0