Year	% of primary school age children
1973	67.87061
1974	71.78052
1975	74.18978
1976	76.1599
1977	77.72608
1978	78.77859
1979	78.87035
1980	79.98721
1981	80.25392
1982	79.92768
1983	79.26301
1984	80.29434
1985	80.65069
1986	81.81824
1987	83.14107
1988	84.25691
1989	85.33525
1990	85.87007
1991	87.60795
1992	88.70739
1993	88.22298
1994	88.16877
1995	88.39232
1996	87.9189
1997	87.36391
1999	90.05305
2000	90.74774
2001	92.74897
2002	93.90213
2003	94.35822
2004	95.08431
2005	95.39817
2006	95.64397
2007	95.89073
2008	97.26895
2009	98.99715
2010	98.92068
2011	99.08721
2017	99.48537
2018	99.6475