2004

6.0

2013

6.1

2009

5.3

2015

6.2

2017

8.1

2013

7.2

2001

9.9

1995

6.3

1982

6.4

2010

6.6

2014

6.9

1977

7.6

1999

5.1

2026

0.0

2010

7.8

2005

5.6

2012

6.3

2006

6.4

2000

5.2

2014

5.8