1979

5.4

2020

6.0

2017

9.0

1964

7.5

1939

6.0

2021

7.5

2001

6.2

2015

7.8

1971

5.0

2012

5.2

2025

10.0

2023

6.8

2015

6.2

1976

5.9

1912

4.0

2013

5.5

2019

9.8

2005

4.1

2007

3.7