1991

7.7

2006

6.9

2010

6.4

2018

7.5

2010

5.0

1980

0.0

2017

7.8

2019

7.9

2016

6.2

2005

5.5

2024

6.5

2011

5.9

2014

6.8

2011

5.8

1996

7.1

2019

6.4

2019

6.9