1984

7.5

1986

7.1

2018

9.0

2012

7.2

2013

7.5

2017

0.0

2014

7.6

2015

7.7

1981

6.5

2004

7.4

2021

6.6

2009

7.0

2018

7.5

2020

8.0

2023

3.0

2012

6.7

1985

7.5

2006

8.5

2021

0.0

2024

0.0