2001

6.8

1982

5.7

1994

7.2

1989

4.1

2000

7.6

1985

6.2

1993

5.9

1987

5.8

1984

7.5

1987

4.5

2003

7.0

1988

4.5

2001

7.5

1986

4.7

1981

7.0

1988

5.8

1983

0.0