Year	% of primary school age
1970	39.095100402832
1971	39.1051406860352
1972	36.6645317077637
1973	35.1709594726563
1974	34.1349182128906
1975	31.5209903717041
1976	29.0924606323242
1977	27.5443992614746
1978	26.3068008422852
1979	27.0256099700928
1980	24.5476207733154
1981	24.9006805419922
1982	23.6115493774414
1983	22.8307800292969
1984	21.4200096130371
1985	20.9642105102539
1986	20.0415096282959
1987	19.0369606018066
1988	18.2452201843262
1989	18.2379398345947
1990	16.1924896240234
1991	15.2498998641968
1992	17.7006702423096
1993	17.4961700439453
1994	15.8591299057007
1995	17.1895904541016
1996	15.3871297836304
1997	15.5550098419189
1998	15.976149559021
1999	15.355580329895
2000	14.2506999969482
2001	11.7150402069092
2002	9.84321975708008
2003	9.3087797164917
2004	8.60731983184814
2005	8.57131958007813
2006	8.8503303527832
2007	7.94926023483276
2008	6.93440008163452
2009	6.31035995483398
2010	5.4212
2011	5.41819
2012	4.6279
2013	5.46375
2014	5.69799
2015	5.99216
2016	5.65192
2017	5.26181
2018	4.93967