2006

6.4

2015

7.9

2016

7.5

2006

5.1

2011

7.4

6.4

2017

8.5

2021

7.1

2009

6.6

2014

6.0

1957

6.9

2008

7.5

1963

7.0

2005

6.0

2002

4.6

2023

9.1

2020

6.2

2017

10.0

2010

5.9

1895

5.5