1988

4.5

1986

0.0

1985

6.4

1978

6.2

2002

3.0

1992

7.0

2004

6.4

1969

4.5

1970

6.1

1977

8.0

1972

4.4

1976

6.5

1989

0.0

1992

1.0

1975

5.5

1980

4.5

1985

0.0

1987

5.2

1971

7.6