1971

5.7

1972

5.9

1952

7.8

1976

6.0

1970

4.2

1961

7.9

1963

6.5

1977

6.8

1973

6.0

1971

5.6

1955

0.0

1980

5.4

1946

7.0

1955

0.0

1971

4.2

1972

6.9

1952

6.3

1972

5.9

1953

6.5

1981

0.0