2014

2.0

2013

6.0

2016

4.0

2005

5.5

2005

5.8

1989

6.5

1991

6.6

1997

6.0

2006

5.5

2006

6.8

2006

5.3

2004

6.4

1985

6.2

2008

6.6

2008

6.3

2004

6.0

2001

6.2

2000

5.2

1981

0.0

2009

3.8