1980

0.0

1964

6.7

1991

0.0

1951

3.8

1962

7.6

1984

4.2

1962

5.4

1981

6.3

1989

0.0

1973

7.7

1982

3.0

1954

4.9

1978

8.0

1987

0.0

1959

8.0

1977

4.7

1990

5.0

1963

7.0

1970

7.1

1976

6.2

1982

7.0

1974

6.6

1979

6.1

1990

6.5

1966

8.0

1978

6.0