Year	% of primary school age children
1977	62.32106
1996	62.53917
1997	63.69209
1999	65.56647
2000	65.14171
2001	69.26575
2002	70.1295
2003	62.28292
2009	61.20658
2013	71.18993
2014	77.43688
2015	81.39806
2016	91.43801
2017	92.48502
2018	97.6224