1975

7.1

2024

6.0

2018

6.5

1985

6.1

1972

6.6

2023

6.9

2022

6.0

1972

6.3

6.6

2021

6.2

1920

7.3

2011

6.8

2018

6.2

7.1

2011

6.6

2024

6.8

6.6

2015

6.6

1989

4.9

2020

6.5