2020

6.4

1985

6.8

1972

6.3

2009

5.8

2006

6.0

2015

6.6

1975

7.0

1980

5.9

2020

6.7

2025

5.8

2021

6.1

1986

6.2

2016

6.5

2006

6.1

2022

6.0

2000

5.1

1953

5.6

2019

6.5

2017

6.6

2024

7.2