2015

6.2

2009

5.6

1971

6.8

1931

5.5

2021

9.2

1988

5.3

2012

7.5

1898

5.7

2012

8.7

1964

7.4

2006

6.7

2016

5.5

2014

5.5

2018

5.3

1976

5.9

2010

6.9

5.0

1975

4.5

2015

6.4