1982

0.0

1999

3.5

2000

5.4

2014

6.3

2013

5.2

2014

4.2

2011

6.0

2007

4.0

2013

5.6

2014

5.6

1985

4.5

2006

6.1

2008

4.5

2008

4.5

2008

5.1

2006

5.9

1989

5.5

2017

4.9

1986

5.8

2006

6.3