2007

6.9

1980

8.4

2010

7.2

2015

5.9

2022

5.1

2008

7.1

2011

6.8

2010

6.1

1969

5.1

2016

7.0

2006

6.4

1896

4.8

2012

5.4

2008

7.8

1993

7.2

2009

5.5

2012

6.1

2016

5.1

2005

6.8

2019

6.3