Year	% of primary school age children
1971	90.95584
1972	90.16531
1973	88.81081
1974	87.91742
1975	87.62543
1976	87.04474
1989	94.2875
1999	90.24
2000	91.24983
2001	90.30978
2002	88.3725
2003	87.47428
2004	87.70214
2005	87.84051
2006	88.24742
2007	88.19702
2008	87.79193
2009	87.46642
2010	87.39116
2011	87.19339
2012	88.42921
2013	88.4241
2014	88.73989
2015	88.62591
2016	88.8771
2017	88.64471