Year	% of primary school age children
1970	49.52187
1971	50.88403
1972	51.5923
1974	52.61101
1975	53.70247
1978	55.88855
1981	61.35243
1982	57.67348
1983	61.70839
1997	74.53366
1999	83.93421
2000	86.1993
2001	85.26023
2002	88.08325
2004	92.32809
2005	93.6177
2006	95.04112
2007	95.87797
2008	95.66356
2009	98.15969
2013	89.66847
2014	87.84461
2015	87.5938
2016	87.00479
2017	87.97486
2018	88.91499