1984

8.5

2015

6.3

2000

6.0

2024

7.9

1990

6.9

2014

6.6

2019

4.5

2010

7.0

2017

5.5

1969

6.0

2009

7.2

1996

8.2

2016

8.5

2021

7.0

1983

6.0

2018

7.0

2011

7.5

2025

6.0

2020

8.0