2016

6.7

1976

4.9

2004

8.1

2017

3.0

2014

0.0

1970

7.2

2008

5.2

1971

7.5

2016

5.2

2009

4.2

1997

6.2

2008

6.8

1966

5.5

2017

5.3

1933

6.8

1973

6.7

1989

5.4

1975

6.3

1966

7.6

2013

6.3