1983

0.0

1981

6.5

1963

6.5

1985

9.0

1970

5.7

1977

7.0

1984

8.0

1985

7.5

1970

6.0

1978

7.1

1961

7.7

1965

6.6

1969

5.0

1982

7.9

1964

6.3

1984

7.0