2023

6.8

2020

6.4

6.6

6.6

2018

6.3

1985

6.8

2008

5.7

2022

6.1

2012

5.7

2024

6.0

2008

6.7

1972

6.3

2024

6.8

7.0

2015

6.6

1972

6.6

1975

7.0

2015

6.4

2011

6.6

2021

6.7