2000

6.0

1957

6.7

1933

6.9

1949

7.7

2009

5.3

1981

7.0

2002

5.2

2007

4.5

2009

5.4

2001

6.4

1950

6.8

1953

7.1

2014

5.8

2009

7.2

2005

6.2

2007

7.1

2019

6.3

2001

6.7

2008

0.0

1971

5.7