2001

7.6

2018

4.5

2008

6.5

2020

6.1

2013

7.1

2005

7.1

2015

0.0

2003

8.2

2020

7.3

2009

7.0

2010

7.7

2016

6.7

2002

7.0

2007

0.0

2007

5.4

2009

7.7

2008

9.0