Year	% of primary school age
1970	23.9875507354736
1971	23.8646507263184
1972	23.1369094848633
1973	22.5439796447754
1974	21.3605098724365
1975	20.8323307037354
1976	20.4310302734375
1977	19.4696598052979
1978	20.0344791412354
1979	20.2997493743896
1980	20.3286895751953
1981	19.5123100280762
1982	18.4068908691406
1983	18.2358493804932
1984	17.9389190673828
1985	17.5109100341797
1986	17.9250793457031
1987	17.7133102416992
1988	18.1274604797363
1989	18.341480255127
1990	19.7297496795654
1991	20.0809307098389
1992	20.5619106292725
1993	20.6640396118164
1994	19.8399906158447
1995	19.8954601287842
1996	19.831449508667
1997	19.5235595703125
1998	18.9917507171631
1999	18.9260005950928
2000	16.9111995697021
2001	15.9589500427246
2002	15.61376953125
2003	15.2440700531006
2004	14.8722801208496
2005	14.7018003463745
2006	13.9787197113037
2007	13.8172798156738
2008	13.7779502868652
2009	13.7282400131226
2010	13.10036
2011	12.43448
2012	12.5017
2013	12.14105
2014	12.11516
2015	11.72521
2016	12.25206
2017	11.86839
2018	11.73378