1985

7.5

1984

6.0

1980

3.1

1979

8.0

1987

0.0

1976

8.0

1979

9.0

1979

9.0

1975

3.0

1969

3.3

1978

1.0

1971

0.0

1978

0.0

1985

0.0

1968

6.9

1978

6.0

1969

0.0

1984

6.7

1974

5.0

1970

0.0

1980

0.5