1969

5.1

2011

6.5

1968

6.9

1993

6.1

2015

6.4

2022

6.3

1994

7.5

2016

6.1

2022

7.0

2020

6.9

2001

6.9

2017

5.8

2019

4.5

2009

6.2

1992

6.8

2023

7.7

2024

7.6

2003

7.5

2007

6.1

2015

6.5