1972

6.3

1985

6.1

2024

5.8

2021

6.7

2023

6.1

2019

10.0

2017

4.6

2015

6.4

2018

6.3

1954

5.0

2010

7.1

2014

8.0

1914

5.0

2018

10.0

2006

5.9

1941

5.0

6.4

2022

5.5

2013

3.4

2024

6.5