1977

0.0

1962

6.4

1982

5.6

1969

5.9

1967

4.1

1973

6.0

1982

0.0

1962

6.0

1956

5.5

1979

6.3

1989

6.3

1976

5.8

1975

0.0

1983

3.1

1966

5.7

1987

6.0

1970

5.7

1983

6.8

1962

5.6

1972

6.6

1973

0.0

1974

7.1

1979

0.0

1990

6.4