2015

8.3

2011

8.5

2012

6.8

2013

8.7

2018

8.4

2017

7.6

2019

7.3

2021

8.6

1996

8.5

2012

8.6

2019

8.7

2011

8.7

2009

8.3

2018

8.3

1999

8.7

2015

8.7

2018

8.2

2000

8.6

2005

8.6

2013

8.7