2011

8.5

2006

7.4

2019

7.6

2013

8.1

1988

8.0

2007

7.7

1993

5.6

2012

7.5

2016

7.6

1998

7.3

2008

8.1

2013

7.3

2015

6.7

1995

8.2

1993

7.9

2015

7.8

2017

8.2

2015

7.4

2022

8.4

2014

7.6