2013

6.1

6.3

1984

6.5

2003

6.2

2014

5.4

1977

7.4

2020

6.9

2017

5.9

2011

5.6

2018

5.3

5.3

1999

6.6

2013

6.1

2007

5.7

2022

5.6

2021

10.0

2012

6.3

2018

6.3

2021

5.7