2023

6.4

2018

6.5

1989

5.8

1968

6.9

1988

5.5

1985

6.1

1975

7.1

2015

6.7

1996

5.8

1972

6.6

1985

6.9

2020

6.5

2021

6.2

2022

6.5

1957

7.2

2010

6.4

2021

6.6

2024

7.4

1976

7.9