Year	% of primary school age children
1987	24.33258
1988	24.63089
1989	24.1272
1994	15.57176
1995	17.27408
1996	20.31181
1998	26.74153
1999	29.74166
2000	34.27463
2001	38.96163
2002	41.50501
2003	42.64421
2004	46.42757
2005	57.86273
2006	63.16266
2007	68.48561
2008	74.16282
2009	74.37555
2010	72.3039
2011	75.88535
2012	77.10289
2014	82.84965
2015	82.03281