1990

6.1

1975

7.3

1895

5.4

1994

7.7

2020

6.5

2015

5.8

2017

6.6

2022

5.8

2016

4.2

2014

6.0

2003

5.8

2016

5.7

1987

6.7

2006

6.4

2018

6.6

2016

6.1

2016

6.7

2018

7.0

2017

7.3

2017

6.7