1980

5.1

1985

8.2

1974

5.0

1976

5.9

1983

6.2

1962

7.6

1956

4.8

1972

4.0

1959

9.0

1971

4.5

1985

0.0

1964

5.7

1953

0.0

1977

7.9

1961

6.0

1954

6.0

1968

6.9

1969

6.0

1959

8.0

1980

0.0

1974

7.1

1955

5.0