1993

6.5

1985

6.9

2018

6.5

2013

6.1

2020

6.5

1972

6.6

2015

6.7

2022

7.5

2023

6.4

2004

7.1

2018

6.3

2008

6.7

2011

6.4

2024

7.7

2025

6.0

1996

5.4

2023

6.9

1898

5.8

2001

7.4