1982

5.9

1993

6.1

2017

6.0

2021

6.3

1987

5.6

6.4

2019

7.0

2023

6.2

2015

5.9

2006

6.3

2001

6.9

1998

4.7

2023

6.1

2023

6.3

2013

4.0

2022

5.9

2002

7.1

2012

5.7

2022

6.9