Year	% of official school-age population
1999	80.31217
2000	74.12047
2001	72.22934
2002	62.90417
2003	67.15871
2004	57.86951
2006	76.95501
2007	70.08912
2009	81.67399
2010	86.53392
2011	86.86138
2012	83.39959
2013	81.82567
2014	90.00562
2015	89.7066
2016	90.73465
2018	92.43515