1934

5.2

2007

6.9

1976

6.5

2008

6.8

1997

6.7

1938

5.4

1983

9.0

1933

7.0

2019

6.7

2016

8.0

1994

6.2

1975

5.1

2014

6.0

2017

7.5

2019

7.2

2017

6.9

2004

7.3

2010

4.4

2018

5.6

2020

6.6