Year	% of primary school age children
1971	72.20109
1972	69.99546
1973	68.12079
1974	64.79216
1975	72.17031
1976	73.38574
1977	71.69293
1978	73.23628
1979	73.89653
1980	73.95097
1988	79.23212
1990	78.15279
1991	75.96268
2011	94.45037
2016	98.67048
2017	96.96492