1988

6.5

1920

7.3

2017

6.5

1966

6.2

2015

6.3

2004

5.7

2019

6.6

1987

6.0

2007

6.4

2002

6.9

2020

6.7

1966

5.6

1999

4.6

2022

7.3

1974

7.8

1971

6.8

1991

8.3

2023

6.9

2021

7.5

2022

6.2