1984

6.9

1989

3.1

1981

5.5

1991

0.0

1985

5.2

1999

6.3

1990

7.7

1984

7.5

1989

8.0

1984

4.8

1995

5.3

1987

6.2

1985

0.0

1987

6.3

1999

5.3