2025

8.6

2013

8.1

2010

6.7

1977

6.3

2016

6.5

2006

6.9

2007

8.0

2012

6.1

1991

7.7

2008

7.8

2009

6.7

2019

7.8

2006

7.9

2015

6.4

2016

6.9

2011

7.3

2020

6.1

2016

6.2

2017

7.0

2016

7.3