2016

10.0

6.3

2011

7.1

2012

6.4

2017

6.0

2017

9.5

2021

7.7

2001

7.2

1968

6.9

2020

6.9

2010

6.6

1987

5.7

2015

5.9

1984

9.2

2023

5.5

1993

6.1

2018

7.0

1895

5.6