2012

5.8

1988

5.7

2005

6.5

2009

5.8

1946

5.8

2008

4.6

1977

5.9

2004

6.0

2009

8.0

2000

5.5

1998

6.9

1947

6.3

2006

6.3

2005

4.8

2011

8.1

1995

7.5

1947

7.9

2020

7.0

2007

6.1

2022

6.8