1975

7.0

2018

6.3

1966

6.1

1972

6.3

2023

6.8

2020

5.8

2015

5.1

6.6

2016

6.2

1977

5.4

1985

6.8

2020

6.4

2024

7.2

2015

6.4

1931

5.8

2019

5.4

2008

6.7

2020

6.4

2023

7.4

6.6