1986

1.0

1982

5.2

1988

2.7

1981

4.4

1972

0.0

1972

10.0

1982

3.0

1980

5.0

1976

4.1

1968

5.0

1979

0.0

1983

5.5

1987

0.0

1980

2.0

1985

6.0

1978

5.0

1983

6.2

1977

3.6

1973

5.8

1974

5.5