2003

8.0

2016

6.7

2004

7.1

2014

6.5

2009

5.6

2019

8.2

2019

6.3

2008

6.8

2019

7.6

2012

7.3

1968

6.9

2025

6.4

1966

7.6

2018

6.5

2021

6.2

1980

5.9

2015

6.8

2024

6.1