2006

6.9

2002

5.0

2005

8.3

2014

7.6

2009

7.9

2011

5.2

2003

7.6

2003

7.2

2017

6.5

2019

4.1

2018

4.4

2006

5.8

2019

7.4

2009

7.7

2012

7.0

2011

3.8