2014

5.8

2017

7.2

2016

6.2

2013

7.0

2015

6.5

2012

6.0

2006

8.2

2019

8.1

2021

7.8

2020

7.3

2023

8.1

1981

7.3

2019

7.8

2018

6.8

2020

7.6

2024

7.2

2018

6.2

1980

8.2

2011

6.9

2012

7.8