2013

6.0

2010

5.5

2016

6.6

1953

4.8

1980

8.4

2012

6.9

1972

6.5

2017

4.7

2017

8.5

2006

10.0

2006

7.0

2011

7.3

1994

6.2

1992

6.5

1980

6.9

2019

7.1

1920

5.4

2009

8.8

2020

6.5

2008

6.7