2006

10.0

2020

6.9

1994

7.4

1977

7.0

2007

6.7

1987

5.2

1968

6.9

2012

5.7

1989

5.5

1992

7.7

1984

7.0

1980

5.3

1933

6.2

1988

6.2

2009

5.3

2008

7.9

2001

5.4

1981

6.3

2014

5.7

1955

7.2