1994

0.0

1984

6.3

1987

5.5

1988

6.3

1999

2.0

1984

6.3

1988

4.6

1985

5.5

1985

6.2

1995

4.5

1985

6.2

1990

5.7

2000

6.7

1986

6.3

1986

5.2

1988

6.1