1985

6.9

1993

6.5

2011

6.4

2018

6.5

2018

6.3

2023

6.6

2023

6.9

6.6

2015

6.6

2020

6.5

2020

6.4

2023

6.4

1972

6.6

2019

5.4

2015

6.7

2024

6.5

2021

6.2

2015

6.4

1975

7.1

1985

6.1