1990

0.0

1995

5.9

1989

6.2

2003

6.9

1985

4.1

1988

5.0

2007

7.7

2001

4.5

1987

7.8

2001

6.8

1983

6.6

1979

6.8

2000

0.0

1994

8.3

1991

7.8

1984

7.0

2012

7.0

1984

6.7

1983

3.0

1997

6.4

1987

6.5

1997

6.4

1986

0.0

1990

0.0

1994

3.5

1997

6.6

1994

6.0