Year	% of primary school age children
1970	44.81562
1971	41.37315
1972	42.32077
1973	44.98343
1974	49.05999
1975	54.97311
1976	59.26108
1977	63.31433
1978	64.12556
1979	65.59491
1980	69.55829
1981	74.31594
1983	79.6084
1984	80.72895
1985	83.44362
1986	85.86033
1987	87.21786
1988	87.72648
1989	88.86289
1990	88.13274
1991	90.21781
1992	89.98509
1993	90.02634
1994	90.18613
1995	81.00345
1996	81.66312
1998	84.13399
1999	83.37816
2000	84.19693
2001	85.58944
2002	85.95439
2003	85.99637
2004	88.53112
2005	86.2826
2006	87.77736
2007	87.38101
2008	84.84264
2009	84.74301
2012	87.26504