Year	% of primary school age
1975	55.7050094604492
1976	54.8353996276855
1977	52.7278785705566
1978	50.4747009277344
1979	47.5790214538574
1980	45.3815002441406
1981	43.365291595459
1982	41.9658317565918
1983	41.5480690002441
1984	42.1137199401855
1985	43.2609786987305
1986	44.8684997558594
1987	45.9035415649414
1988	46.6590385437012
1989	46.0845603942871
1990	46.7365913391113
1991	45.8418006896973
1992	46.0988006591797
1993	45.6665992736816
1994	45.3579788208008
1995	44.6238708496094
1996	45.7697601318359
1997	43.0003814697266
1998	42.1011009216309
1999	41.3343811035156
2000	39.0202789306641
2001	36.9451599121094
2002	35.1801986694336
2003	32.6274795532227
2004	30.8232898712158
2005	28.5911903381348
2006	26.7302207946777
2007	24.041690826416
2008	22.9937591552734
2009	22.4630393981934
2010	23.20545
2011	21.71713
2012	21.05119
2013	20.46956
2014	20.03008
2015	20.04884
2016	19.90556
2017	19.75096
2018	19.53926