1976

4.5

2003

6.6

1993

5.4

2016

6.7

2021

7.4

2010

4.6

2023

6.5

2025

8.0

2020

6.6

2017

7.3

2020

9.5

2019

6.2

1979

10.0

1992

5.0

2019

3.5

1920

7.3

2011

5.0