Year	% of official school-age population
1999	85.56877
2000	79.4942
2001	77.26612
2002	74.02687
2003	74.21289
2004	74.06913
2005	72.78351
2006	77.51577
2008	73.82841
2009	75.04174
2010	79.96438
2011	81.38917
2012	82.15306
2013	78.34793
2014	81.78942
2015	84.85334
2016	84.33769
2017	87.36239
2018	83.7714