Year	% of primary school age
1970	39.3170318603516
1971	39.3463096618652
1972	37.0701103210449
1973	35.6762199401855
1974	34.7136688232422
1975	32.2859916687012
1976	30.0615100860596
1977	28.6144008636475
1978	27.4549007415771
1979	28.156120300293
1980	25.8683891296387
1981	26.175220489502
1982	24.9553508758545
1983	24.1954193115234
1984	22.831470489502
1985	22.3461208343506
1986	21.4105796813965
1987	20.4274196624756
1988	19.6484508514404
1989	19.5838108062744
1990	17.7542591094971
1991	16.9173393249512
1992	19.0139598846436
1993	18.6791191101074
1994	17.0719299316406
1995	18.0668601989746
1996	16.2840099334717
1997	16.2932090759277
1998	16.4859199523926
1999	15.7525901794434
2000	14.6548204421997
2001	12.3128595352173
2002	10.5328702926636
2003	9.96858978271484
2004	9.19979953765869
2005	9.02264976501465
2006	9.06727981567383
2007	8.01399993896484
2008	6.8949499130249
2009	6.33152008056641
2010	5.13263
2011	5.11071
2012	4.178
2013	5.07681
2014	5.0907
2015	5.32258
2016	5.03233
2017	4.81019
2018	4.6246