1973

7.0

2010

7.1

2006

6.4

2021

7.7

2023

7.3

2015

7.4

1972

4.0

2020

7.3

2017

6.4

1973

7.6

2015

6.0

7.8

2004

9.4

2011

5.7

2006

6.0

1982

0.0

2019

7.2

9.5