1975

5.5

1974

0.0

1980

5.7

1967

6.1

1969

4.0

1981

4.3

1969

0.0

1978

0.0

1970

5.6

1963

5.8

1975

0.0

1974

4.1

1977

6.3

1962

7.5

1979

0.0