1986

5.0

1918

6.8

2008

6.9

2010

6.1

2013

6.4

1989

7.9

1932

6.2

1976

7.5

2017

6.0

1927

7.1

2015

5.5

1970

6.2

2021

7.7

2008

7.0

2019

7.3

2016

9.7

5.8

2003

7.1

2005

5.4