2008

7.0

2009

7.4

2000

6.9

2010

8.5

2016

8.6

2013

8.0

2017

8.1

2014

7.8

2015

7.8

2002

7.5

2014

8.0

2017

8.2

2000

7.4

2015

8.0

2006

8.6

2019

8.7

2007

7.4

2016

7.3

2007

7.8

2007

7.9