1972

4.8

1910

5.5

1953

4.6

1997

7.5

2013

8.5

2019

6.2

2020

6.1

2018

8.0

1921

5.0

1949

5.7

2016

7.6

2014

5.0

2020

5.5

2009

6.1

1999

4.2

2012

3.5

1970

10.0