1996

6.5

1975

0.5

1968

7.0

1969

3.2

1988

9.3

1979

0.0

1965

7.9

1967

0.0

1984

6.0

1994

7.0

1986

5.3

1972

3.3

1977

0.0

1971

4.6

1968

3.3

1967

0.0

1992

3.4