Year	% of primary school age children
1971	36.86046
1972	37.95453
1973	38.30772
1975	41.20807
1976	44.13876
1977	47.72865
1978	50.99459
1979	53.43977
1980	56.10223
1981	58.7991
1982	59.14966
1983	61.50494
1984	64.02097
1985	62.73205
1986	60.98054
1987	58.98187
1988	57.27868
1989	55.17983
1990	56.02291
1991	55.67112
1992	56.17062
1993	58.30964
1994	60.944
1995	63.7744
1996	66.10001
1997	67.70415
1998	66.98136
1999	71.91763
2000	76.69353
2001	80.56958
2002	84.7244
2003	86.00713
2004	86.75596
2005	87.56886
2006	88.34578
2007	89.67433
2008	90.28557
2009	89.88029
2010	92.74532
2011	93.68978
2012	93.00842
2013	94.36711
2014	93.72925
2017	96.94964
2018	99.15589