1966

8.0

1964

5.9

1979

5.3

1974

5.0

1976

6.5

1981

6.0

1965

3.0

1985

0.0

1984

5.8

1973

5.0

1957

7.9

1984

0.0

1987

0.0

1974

0.0

1962

0.0

1989

7.5

1978

6.0