Year	% of official school-age population
1999	81.51848
2005	69.88786
2006	68.61102
2007	65.33762
2008	62.08668
2009	60.23055
2011	63.96736
2012	58.74016
2013	59.68354
2014	62.2208
2015	66.81789
2016	61.89684
2017	18.27323
2018	57.18464