Year	% of primary school age children
1970	42.23365
1971	43.20046
1972	43.93483
1974	45.4893
1975	46.36627
1978	48.62257
1981	53.59903
1982	51.52807
1983	54.53427
1997	67.43367
1999	77.56589
2000	80.81671
2001	80.22159
2002	83.97844
2004	89.0495
2005	90.89891
2006	92.74704
2007	94.19514
2008	94.39974
2009	97.82515
2013	90.22777
2014	88.35907
2015	88.0288
2016	87.39891
2017	88.43096
2018	89.52512