1973

4.4

2006

6.6

2022

6.3

2012

5.5

6.4

2022

6.4

2007

4.9

2023

6.0

2014

5.3

2017

6.4

2013

6.1

1997

5.4

1966

6.1

2022

6.3

2021

7.8

6.7

2018

7.0

2017

5.7

2020

5.8

1987

6.0