2011

5.8

2009

4.8

1966

7.3

1943

8.2

2005

5.5

2012

5.3

2013

7.7

2012

5.8

1988

5.8

2009

5.8

2010

6.7

2017

6.3

2009

4.1

2002

6.4

1996

6.7

2012

6.0

1990

7.0

2012

6.3

1987

7.6

2007

5.7