Year	% of primary school age children
1970	45.95251
1971	47.12064
1972	47.8403
1974	49.11799
1975	50.10291
1978	52.317
1979	52.81906
1980	54.64924
1981	57.53732
1982	54.64903
1983	58.17684
1997	71.03313
1999	80.79316
2000	83.54524
2001	82.77562
2002	86.05956
2004	90.71364
2005	92.28014
2006	93.91345
2007	95.05148
2008	95.04337
2009	97.99573
2013	89.9423
2014	88.09642
2015	87.80667
2016	87.19765
2017	88.19802
2018	89.21348