2004

8.1

2008

8.9

2016

8.6

2013

8.2

2022

8.4

2017

8.0

2010

8.1

1989

8.3

2011

8.5

2013

8.5

2018

8.3

2019

8.7

2015

8.7

2019

8.4

2001

7.8

2015

7.6

1994

8.4

2010

7.9

2017

8.4

2012

7.6