1972

6.4

2008

7.8

2018

7.0

1967

5.7

2025

6.7

2014

7.8

2025

6.8

2017

5.8

1980

6.3

2008

6.8

2009

5.7

1971

7.7

2004

6.2

2010

4.4

2016

7.3

2020

6.9

2015

6.3

2003

7.1

2024

6.9

1986

7.0