1895

5.4

2006

4.1

2015

7.0

2011

6.3

1990

5.9

1980

8.4

2017

6.5

2009

5.3

2012

9.7

2018

6.9

2020

6.1

2015

6.3

2016

6.2

2014

7.0

1942

6.8

2016

6.9

2018

7.7

1986

6.0

1994

6.5

1989

6.3