2020

8.1

2016

7.5

1995

7.8

2020

7.6

2017

5.2

1989

8.3

2019

8.0

1973

6.7

2007

7.5

2017

6.5

1990

6.9

1985

7.9

2021

8.2

2023

8.5

1979

7.4

2021

7.5

2015

8.1

2014

7.8

2012

7.3

2022

6.4