2003

6.4

1972

6.3

1993

6.5

1985

6.1

2020

6.5

2023

6.9

6.6

1993

6.5

2003

6.8

2015

6.7

2012

6.3

2024

6.0

2023

6.6

1985

6.9

2020

5.5

2022

6.5

2019

5.4

2015

6.6

7.1

6.6