1980

7.3

2016

5.0

2012

6.1

2010

8.1

2017

8.2

2013

8.7

2009

8.0

2004

8.6

2011

8.5

2021

7.9

2012

7.5

2013

8.0

2017

8.4

2016

8.5

2006

8.2

2016

8.6

2011

8.2

2024

7.2

2015

8.2

2016

8.0