Year	scale 0 - 100
2004	64.87179487179488
2005	66.41025641025641
2006	64.61538461538461
2007	66.92307692307692
2008	65.8974358974359
2009	64.75
2010	65.75
2011	66.75
2012	68
2013	66.58536585365853
2014	70
2015	69.7560975609756
2016	70.2439024390244
2017	70
2018	70.48780487804878
2019	69.51219512195122
2020	69.7560975609756