2015

6.0

2014

8.4

2013

0.0

2006

5.2

2017

7.1

2017

6.9

1995

8.3

2015

6.5

2017

4.9

2016

1.0

2018

7.5

2017

8.5

2006

5.8

2005

6.7

1979

7.3

2006

6.8

1980

5.4

2000

8.0

1997

8.2

2006

8.5