2011

6.7

2002

4.4

2000

5.3

2005

7.6

1996

6.2

2012

5.8

2016

6.3

2019

5.2

1999

6.7

2017

0.0

2013

5.4

2009

0.0

1995

3.0

2012

5.7

2009

6.8