2017

6.3

2020

7.1

2006

5.2

2015

3.8

2002

6.5

2007

6.0

2012

5.9

2013

6.0

2019

5.7

2016

5.0

2014

6.2

2011

6.9

2018

4.6

1970

6.2

2023

0.0

2022

0.0

2004

6.1

2024

5.7

2015

5.0

2018

3.0

1984

0.0