2020

5.7

2017

6.2

1986

6.2

2013

6.6

1989

5.5

2005

5.2

1987

5.3

2012

5.8

2023

6.4

2009

5.9

1980

5.9

2017

6.6

2019

6.6

1993

6.5

2006

6.1

2020

6.7

1966

6.2

2022

6.4

2001

7.2

2024

6.8