2014

5.6

6.1

2020

7.2

2021

10.0

1931

5.8

2014

7.3

1984

6.7

2020

7.5

2011

5.9

1968

6.4

2014

5.9

2016

5.2

2018

6.0

2017

6.1

2012

6.8

1931

5.0

2007

5.7

5.4