1999

4.2

1984

5.3

1984

5.0

1985

8.3

1987

9.0

1996

9.7

1973

0.0

1971

6.3

1975

6.0

1995

8.4

1977

8.7

1974

8.0

1986

7.4

1985

6.7

1987

4.0

1974

1.0

1994

7.1

1980

6.2

1976

0.0

1972

8.1

1974

0.0