1982

7.6

1967

5.7

2018

6.6

2012

8.2

2020

6.2

2013

6.6

2000

7.2

2018

6.7

2004

7.8

2015

6.0

1977

6.7

2017

7.1

1997

6.9

2022

3.9

2020

6.0

2021

1.0

2019

5.5

2020

9.4

1977

6.8

2005

7.0