1987

5.0

1985

0.0

2000

5.0

1989

0.0

2004

2.9

1984

0.0

1991

4.0

1985

5.0

1989

4.0

2002

5.4

1981

5.5

1983

7.0

1986

6.8

1993

0.0

1991

5.7

1982

5.9