6.4

2017

6.1

2001

7.3

2019

7.7

1966

6.7

2007

7.0

1995

5.6

1996

7.5

2021

6.2

1976

5.9

1949

5.1

2023

5.9

2000

5.0

1994

6.5

1946

5.2

2021

6.0

2020

6.1

2020

6.8

1993

6.5