2017

0.0

2014

8.0

1988

8.1

2008

9.7

2012

6.6

2010

0.0

2012

0.0

4.0

1972

6.9

2002

8.4

1995

7.0

1986

4.0

2009

6.8

2005

7.2

2000

6.4

2001

7.0

2001

6.7

1969

6.2

1990

6.9

2005

6.4