1993

5.5

2020

3.7

5.7

2021

7.1

2015

5.3

1996

5.9

2017

6.9

1986

6.2

2020

7.1

2016

7.0

2015

6.2

2022

5.3

2003

7.0

2022

6.8

2010

6.3

2023

5.8

2022

7.7

2008

5.5

2023

6.8

2014

8.4