2016

6.7

1980

5.9

2009

5.6

2008

8.9

2017

9.4

2013

7.7

1985

6.1

2020

6.9

2012

5.8

1946

5.8

2019

6.5

2017

5.9

2012

6.3

2021

6.6

1997

6.5

1991

5.7

1940

6.3

1961

6.7

2010

5.0

7.8