Year	% of official school-age population
2001	76.77049
2002	79.53861
2003	79.84106
2004	80.17619
2005	80.69033
2006	80.55144
2007	80.37915
2008	79.16194
2009	78.80311
2010	79.07514
2011	79.37653
2012	80.40402
2013	81.41853
2014	82.74821
2015	83.55946
2016	84.44641
2017	85.02272
2018	85.46683