Year	% of primary school age children
1973	13.31087
1974	18.88167
1975	26.28963
1976	27.2474
1978	34.77876
1979	37.80752
1981	42.8799
1982	45.48745
1983	48.5464
1984	54.95535
1985	57.36973
1986	63.22959
1987	65.4702
1988	64.82394
1989	65.9663
1990	67.16301
1991	68.2343
1992	69.59741
1993	72.95787
1994	74.20158
1995	75.65553
1996	78.29453
1997	79.0198
1998	81.17622
2011	98.84849
2012	97.51398
2013	97.949
2014	97.61963
2015	97.56094
2016	98.5996
2017	97.87145
2018	95.46999