Year	% of primary school age children
1978	22.03288
1979	24.83532
1998	53.94555
1999	54.85842
2000	57.64125
2001	60.31058
2005	70.22971
2006	74.30881
2008	80.37733
2009	85.16719
2010	87.53027
2011	88.95249
2012	91.47498
2013	90.94823
2015	90.13416
2016	89.71099
2017	89.69917
2018	90.06547