2008

8.0

2012

6.8

2010

7.7

2003

7.8

2017

7.2

2000

6.9

2015

6.9

1998

7.9

2001

6.5

2001

8.0

2015

7.0

2013

7.5

2001

7.8

2008

7.7

2012

7.5

2002

7.9

2004

8.1

2014

7.6

2012

7.0

2014

8.2