1975

4.5

2016

6.5

5.0

1976

5.2

2009

5.6

2024

7.9

2013

8.1

2020

5.5

1931

5.8

1964

7.4

2012

8.5

2023

6.4

6.4

2019

5.3

2017

5.6

2006

5.0

1993

5.5

2012

9.3

2024

6.1