1978

8.1

1981

0.0

1986

6.0

1972

5.4

1975

5.9

1969

4.5

1996

7.2

1981

10.0

1992

5.1

1976

3.0

1973

5.6

1977

0.0

1972

0.0

1974

6.0

1970

6.0

1972

5.6

1984

6.3

1980

0.0

1973

6.0

1971

5.8