Year	% of primary school age
1972	61.9215202331543
1973	61.0788612365723
1974	60.4141502380371
1975	58.7123413085938
1976	56.8507804870605
1977	55.3300895690918
1978	53.9884300231934
1979	52.8840484619141
1980	51.2823600769043
1981	50.1327209472656
1982	50.7925415039063
1983	50.0543212890625
1984	50.2731590270996
1985	50.472339630127
1986	50.5069618225098
1987	51.2016716003418
1988	51.3096809387207
1989	52.4729499816895
1990	53.6703910827637
1991	52.4660186767578
1992	53.4397087097168
1993	53.6176414489746
1994	52.6058692932129
1995	50.6265487670898
1996	50.5813407897949
1997	47.5401306152344
1998	47.086971282959
1999	47.1222114562988
2000	44.9802017211914
2001	42.4371109008789
2002	38.9119491577148
2003	35.9984512329102
2004	33.3940200805664
2005	30.7741107940674
2006	28.1883296966553
2007	26.1328792572021
2008	22.8380508422852
2009	22.4534091949463
2010	22.58564
2011	21.31225
2012	20.24079
2013	19.36245
2014	18.42069
2015	18.46955
2016	18.15597
2017	17.87446
2018	18.33332