Year	% of official school-age population
1999	75.37659
2000	74.61184
2001	77.88235
2002	90.76302
2003	85.90995
2004	86.80507
2005	85.32024
2006	84.02328
2007	87.09963
2008	86.78638
2009	86.94388
2010	88.76639
2011	88.03882
2013	86.74821
2014	85.64847
2015	85.56504
2016	85.86313
2017	85.56878
2018	86.75852