2015

7.8

2009

7.5

2009

5.6

2007

7.7

2015

5.1

2015

6.2

1967

2.8

2013

5.3

2011

3.4

1962

7.0

1919

6.3

2016

9.0

2006

6.8

1993

4.0

2017

8.0

1992

6.5

1945

8.0