Year	% of primary school age children
1970	79.76394
1972	70.376
1973	81.46099
1975	78.96045
1976	80.08288
1977	81.03834
1978	82.71852
1979	83.98334
1980	86.10981
1981	87.98265
1983	88.35086
1984	87.90906
1985	87.79023
1986	86.71118
1987	87.43822
1988	89.01053
1989	90.83886
1990	92.56517
1991	94.48361
1992	85.7437
1993	95.5992
1994	90.99687
1995	90.71599
1996	93.89767
1999	97.69587
2000	99.10632
2001	98.9054
2002	97.19796
2003	96.69653
2004	96.20498
2005	96.56064
2006	95.03927
2007	93.15223
2008	91.4732
2009	90.10333
2010	88.55404
2011	89.8409
2012	87.83929