2021

9.2

2011

7.3

1975

7.1

2018

6.0

2010

7.9

2012

7.2

1940

6.6

2020

7.2

1990

5.2

2009

5.6

2022

7.6

1978

6.8

1972

6.6

2017

7.3

2013

5.9

1964

7.4