1986

0.0

1988

0.0

2004

4.8

1977

4.0

1992

6.2

2003

5.4

1988

7.1

1996

6.2

1995

7.9

1984

6.0

2006

3.8

1975

0.0

1978

5.2

2003

6.1

1979

6.4

1991

7.4

1991

3.5

1978

6.7

1999

10.0

2006

7.2

1983

4.6

2002

2.5

2002

7.0

1976

3.0

1994

5.3

2001

8.0

1999

10.0

2004

5.1

1999

8.2

1980

6.3