Year	% of official school-age population
2005	77.17771
2006	77.07982
2007	77.54357
2008	77.58388
2009	77.67396
2010	78.33325
2011	78.688
2012	78.30491
2013	77.36128
2014	76.88046
2015	77.0008
2016	76.88308
2017	77.12594
2018	76.86915