Year	% of primary school age children
1971	34.97415
1972	36.45213
1973	38.63533
1974	41.14137
1975	44.23178
1976	51.15588
1977	55.19624
1978	58.82989
1979	81.22215
1980	88.0661
1981	88.81897
1983	84.58905
1985	82.05387
1986	82.82528
1987	84.27801
1988	86.30407
1989	83.71721
1993	74.17802
1996	71.44136
1999	83.37762
2000	82.40181
2004	86.77866