2015

7.3

2012

6.2

2013

6.3

2009

6.5

1948

6.0

2017

5.5

2017

7.0

2004

5.7

1999

8.0

2014

6.6

2013

6.6

2012

7.3

2013

6.2

2015

7.4

2013

6.5

2014

5.4

2018

4.0

2010

6.0

2022

6.9