Year	% of primary school age children
1971	87.34362
1972	89.19558
1973	88.98337
1976	99.50298
1981	93.91048
1982	95.79323
1983	99.24034
1989	99.61089
1990	98.4979
1992	90.21166
2000	95.53209
2001	94.74196
2002	92.06219
2003	91.97879
2004	91.13296
2005	90.30086
2006	92.26862
2007	93.9499
2008	98.43764
2009	96.55858
2010	94.27003
2011	93.08117
2014	92.90855
2015	95.42842
2016	97.53985
2017	97.29118
2018	99.22526