6.0

7.0

1993

6.5

2024

6.0

1998

6.1

2016

6.7

5.6

2009

8.5

2023

6.8

2020

5.4

2020

6.4

1999

6.6

2012

5.8

2021

6.1

1969

7.7

1985

6.8

1955

7.4

1982

5.8

2011

6.6

2025

6.0