Year	% of primary school age children
1975	24.17626
1977	24.70997
1988	33.31495
1996	37.29169
1997	42.63793
1998	47.79499
1999	49.70123
2000	51.36792
2001	52.57533
2002	56.06618
2003	57.60047
2011	62.38415
2013	78.13257
2015	79.35908
2016	73.4665