1991

6.6

1990

0.0

1993

3.5

1995

7.2

1980

7.5

1984

7.0

1984

0.0

1993

0.0

2004

4.5

1992

0.0

1995

0.0

1990

0.0

1997

5.0

1996

0.0

1996

3.0