Year	% of official school-age population
1999	17.28865
2000	21.42512
2002	23.60293
2003	29.96136
2004	32.49569
2005	33.04744
2006	35.55455
2007	36.76588
2008	36.99424
2009	41.10707
2012	45.71633
2014	44.91168
2016	54.20895