2021

9.2

2013

7.9

2011

7.3

2014

6.5

1928

6.0

2001

6.7

2015

5.4

1977

7.1

1953

4.8

1988

6.8

2004

6.7

1964

7.4

1972

6.5

2012

7.2

2007

10.0

2016

7.0

2015

5.7

2015

4.8

2010

6.3