2001

7.8

2007

6.2

2014

7.2

2009

8.0

2003

7.8

2005

8.3

2019

7.7

2013

7.8

2004

8.6

2014

7.8

2007

8.0

2012

4.7

2010

4.6

1993

8.4

2006

0.0

2013

6.3