1996

8.0

2012

6.2

2018

6.3

1980

5.9

2001

5.9

2017

7.3

2019

7.7

2012

9.3

2014

6.8

2022

7.4

2009

6.1

2017

4.5

2011

6.6

1993

6.5

2008

5.1

7.8

2005

9.7

1901

5.8