1928

6.0

1999

7.2

2014

6.9

2019

7.7

2023

9.2

2017

4.9

1920

6.5

2011

6.6

2013

6.8

1981

6.2

1993

6.5

2006

6.1

2014

5.3

2007

8.1

1987

8.0

2022

5.2

2023

5.8

2008

6.2

2016

6.5