1999

7.9

2012

8.1

2008

5.7

2009

8.3

2020

8.2

2016

8.5

2004

8.4

2014

7.2

2010

7.2

2007

7.9

2017

8.1

2009

7.4

2022

8.2

2019

8.6

2013

7.9

2016

7.5

2016

7.4

2009

7.3

2021

7.0

2011

8.5