2011

6.1

2006

6.7

2017

7.1

2013

2.0

2003

7.0

2004

7.7

1997

0.0

2008

6.7

2013

6.9

2009

6.3

2008

5.7

2000

5.4

2011

8.5

2017

6.1

2018

7.5

1988

0.0

2006

0.0

2014

10.0

2001

6.8

1982

7.1