2008

8.0

2016

7.3

2017

8.4

2005

8.3

2002

7.6

2015

8.3

2005

8.2

2018

8.2

2000

7.6

2016

8.0

2009

7.7

2015

7.6

2009

8.0

2018

7.2

2016

7.1

2010

7.8

2014

7.8

2007

8.3

2012

6.8

1987

8.4