2014

10.0

2017

5.9

5.3

2011

5.6

2012

7.2

5.6

2014

6.5

2017

6.1

1953

4.8

2018

6.0

2015

6.7

2004

9.5

2016

8.0

1978

6.8

2001

9.4

2007

5.7

1894

4.8

2004

9.9

6.2

2014

6.6