2010

8.0

2006

9.8

2013

5.9

2011

6.8

2015

5.3

2004

5.8

2001

6.2

2016

4.7

2006

5.5

2012

6.3

2009

5.6

2023

7.1

2013

7.6

2014

6.6

2008

6.1

2011

6.6

2002

5.2

2013

6.3

1996

9.4

1918

5.7