1973

10.0

1962

0.0

1985

6.4

1963

7.9

1970

7.0

1981

6.5

1989

7.2

1992

7.0

1964

7.3

1971

6.0

1981

6.8

1975

2.0

1978

7.2

1986

7.3

1979

6.8

1991

6.0

1978

7.0

1975

0.0

1991

7.8

1984

7.0

1971

7.6

1984

6.4

1975

7.7