2008

8.9

2007

8.1

2020

7.2

2005

8.8

2011

8.2

2012

6.8

2016

8.6

2001

7.8

2011

8.5

1999

7.4

2014

7.8

2017

7.6

2013

7.5

2004

8.0

2011

7.6

2013

8.2

2015

7.3

2013

8.5

2005

7.6

2005

8.1