Year	% of official school-age population
1999	86.08105
2000	86.21018
2001	86.77684
2002	88.44424
2003	88.81201
2004	86.54458
2005	86.72172
2006	87.06418
2007	86.72957
2010	74.81697
2013	70.91315
2014	71.21795
2015	72.04598
2017	71.08204