1947

6.3

1981

6.3

1964

7.1

1961

5.5

1956

6.0

1933

0.0

1970

5.0

1958

6.5

1975

0.0

1966

6.3

1957

4.8

1969

5.3

1972

4.9

1974

5.2

1977

7.5

1967

7.6

1981

0.0

1969

3.5

1971

7.6

1962

7.3

1963

6.7

1955

5.2