2009

7.4

2008

7.6

2004

7.7

2000

6.1

2003

7.3

2005

8.1

2004

7.0

2005

7.5

2002

7.2

1985

7.4

2014

6.5

2005

7.4

2016

0.0

2017

0.0

2016

0.0

2002

6.8

2003

7.2

2016

8.5

2011

0.0

2013

0.0