1995

5.9

2009

6.5

2022

7.1

2001

6.7

2005

6.0

2010

6.2

2010

7.0

1998

7.5

2014

6.6

2008

5.2

1999

8.0

2004

6.7

1996

5.3

2010

7.9

2006

7.0

1929

6.8

5.6

2011

5.1

1965

6.8

2004

5.9