Year	% of primary school age children
1973	7.59073
1974	8.18867
1986	16.53225
1989	16.47078
1990	16.88337
1991	17.39823
1992	16.02055
1997	18.56885
1998	19.14915
1999	20.81695
2000	21.67539
2001	24.59737
2002	27.44776
2003	30.80566
2004	33.72222
2005	34.26441
2006	35.68321
2007	37.11957
2010	48.73547
2011	53.3845
2012	55.382
2013	55.31584
2014	55.75472
2015	57.2101
2016	58.33642