2009

5.7

2017

6.4

2005

5.5

2003

5.1

6.4

2020

5.5

9.4

2010

7.3

2014

6.2

2001

7.4

2008

7.6

2015

5.2

2013

6.7

2017

6.3

2004

6.0

2016

6.1

1998

4.7

2012

8.9

2013

4.0

2014

6.6