Year	% of primary school age children
1970	84.94045
1972	87.59228
1973	88.75836
1975	90.56168
1976	92.80986
1978	91.38362
1979	89.95903
1980	89.96312
1981	90.24776
1982	88.54472
1985	85.54829
1986	86.63674
1987	86.72537
1989	86.90914
1990	87.01864
1991	87.64169
2013	99.11983
2014	97.21948
2015	97.73134
2016	98.41674
2017	96.52241