2013

6.1

2022

5.6

2017

7.6

2020

7.3

2020

6.0

1968

6.9

1993

6.1

2010

7.9

2017

6.0

1974

6.3

2013

6.6

2021

8.3

2011

7.2

2008

5.7

1911

6.6

1993

6.5

2015

5.8

2019

2.8