2008

0.0

1992

7.5

2003

0.0

1995

0.0

1994

0.0

1986

6.1

2005

7.7

2005

6.8

1986

7.6

1993

7.5

1972

7.4

9.0

1999

7.7

1996

5.6

1988

7.5

2005

7.1

1997

7.5

1961

6.7

2006

6.5

1985

8.4