2009

7.2

1983

6.7

1953

6.8

1998

8.3

1992

6.6

1980

0.0

2010

0.0

1984

1.0

1975

6.5

1980

5.5

1941

7.0

2004

5.7

2006

5.5

1932

7.0

1998

7.9

1973

7.1

1988

6.7

2004

6.5

1975

7.0

2008

5.6