1991

5.4

2014

6.0

7.8

2020

6.9

2010

7.9

2013

7.5

1920

6.5

1967

5.6

1989

6.6

2023

9.2

2012

9.3

2019

8.7

1994

5.9

2002

7.4

1905

6.1

2022

5.6

1987

6.7

2009

5.6

2017

8.1

8.0