Year	% of official school-age population
1999	50.80353
2000	54.69493
2001	54.82228
2002	57.7947
2003	58.36992
2004	59.90104
2005	61.85014
2006	65.03109
2007	72.00479
2008	73.89661
2009	79.3303
2010	86.37589
2011	86.28574
2012	90.00644
2013	93.81082
2014	93.3551
2015	90.35897
2016	89.85326
2017	90.52137
2018	90.17755