2005

6.2

2004

6.7

2007

5.7

2012

7.1

1911

9.5

2022

7.8

2017

9.5

2007

6.7

6.3

2016

5.6

1991

5.0

2006

5.7

2016

4.9

2010

6.8

1980

6.4

2016

7.3

2009

6.6

2012

7.2

2015

6.2

2015

5.3