2014

6.1

2014

6.0

2018

3.7

2017

7.3

2008

7.6

1999

5.8

2017

4.8

2017

6.9

2016

7.0

2007

6.0

2010

6.6

2006

6.8

2004

4.6

1985

7.4

1974

7.2

2008

4.1

1968

7.5

2006

5.3

1988

6.6

1985

4.1