2016

6.7

2004

8.1

1976

4.9

2017

3.0

2014

0.0

2008

5.2

1971

7.5

2016

5.2

1970

7.2

1989

5.4

1973

6.7

1933

6.8

2008

6.8

1975

6.3

2009

4.2

1966

5.5

1966

7.6

2017

5.3

2013

6.2

2018

6.5