Year	% of primary school age children
1970	80.84148
1972	70.2922
1975	79.68821
1976	81.00938
1977	81.87969
1978	83.51834
1979	84.74302
1980	86.85859
1981	88.62748
1983	89.13016
1984	88.54644
1985	88.31841
1986	87.25524
1987	87.86742
1988	89.45714
1989	91.0442
1990	92.9479
1991	94.74413
1992	85.52906
1993	95.91108
1994	90.62085
1996	93.29497
1999	97.21314
2000	98.48099
2001	98.36207
2002	96.73807
2003	96.30863
2004	95.74279
2005	96.01361
2006	94.55646
2007	92.7547
2008	91.22667
2009	89.79518
2010	88.40295
2011	89.69132
2012	87.70622