2020

6.0

1997

6.1

2012

6.3

2011

9.7

1941

6.2

6.7

2011

8.0

2014

7.1

2016

6.9

2009

6.7

2015

6.9

2020

6.1

2008

5.8

2007

7.5

2024

10.0

1977

6.7

2014

6.0

2017

7.7

2021

6.6