1999

6.5

2017

8.2

2022

8.5

2019

8.4

2010

8.1

2011

8.5

2016

8.6

2008

8.9

2013

8.7

2014

7.9

2007

7.9

2006

8.2

2015

8.7

2010

8.5

2021

7.8

2019

8.7

2013

8.5

2015

8.2

1999

8.7

2011

8.3