2004

6.6

2010

6.7

2007

5.7

2021

7.1

2017

5.5

2002

6.4

2013

6.1

2014

7.7

2008

4.6

2004

7.7

2013

7.3

2003

5.5

2015

7.2

2000

6.2

2016

7.2

2000

6.3

2011

6.3

2018

6.6

2010

6.1

2007

6.7