Year	% of primary school age
1972	56.0366516113281
1973	53.5434303283691
1974	52.8473014831543
1975	51.2655906677246
1976	50.0438690185547
1977	48.5168495178223
1978	47.2947616577148
1979	45.3164710998535
1980	43.7699089050293
1981	42.1363296508789
1982	41.4654502868652
1983	40.9178009033203
1984	41.2797508239746
1985	41.9658012390137
1986	43.026798248291
1987	43.4890213012695
1988	42.6765785217285
1989	43.078010559082
1990	43.4625816345215
1991	42.4928207397461
1992	42.2028503417969
1993	41.8079681396484
1994	41.2990989685059
1995	40.8491516113281
1996	41.3794784545898
1997	39.596061706543
1998	38.9770317077637
1999	38.5858612060547
2000	36.424560546875
2001	34.8531112670898
2002	32.8401489257813
2003	30.5264492034912
2004	28.1519107818604
2005	26.2983303070068
2006	25.6725597381592
2007	23.540979385376
2008	22.9443206787109
2009	22.306640625
2010	22.60924
2011	21.62725
2012	21.10003
2013	20.40335
2014	19.67749
2015	20.21756
2016	19.59713
2017	19.52634
2018	18.98874