Year	% of primary school age children
1971	12.59996
1972	13.01122
1977	15.68353
1978	16.2859
1979	16.85598
1980	17.71441
1981	19.05267
1982	21.00503
1983	22.38634
1984	24.21022
1985	26.79656
1986	29.13192
1987	31.30331
1988	31.77276
1989	31.90826
1991	32.82164
1992	33.39627
1993	34.49254
1994	35.96207
1995	37.92465
1998	41.46264
1999	41.81047
2000	42.93398
2001	43.80391
2002	42.2182
2003	44.52516
2004	46.28998
2005	51.10803
2006	54.56736
2007	59.80496
2008	65.39765
2009	67.72317
2011	66.92852
2012	67.69295
2013	68.19419
2014	69.55454
2015	71.12553
2016	76.91483
2017	77.90443
2018	80.21741