Year	% of lower secondary school age
1986	6.1048002243042
1987	6.86812019348145
1988	5.62746000289917
1989	6.16538000106812
1990	5.43350982666016
1991	5.62508010864258
1992	5.72509002685547
1993	5.11745977401733
1994	4.85995006561279
1995	4.74001979827881
1996	4.48327016830444
1997	5.26539993286133
1998	5.32440996170044
1999	5.50441980361938
2000	4.52403020858765
2001	3.85861992835999
2002	3.68164992332459
2003	3.14733004570007
2004	3.2778000831604
2005	2.82395005226135
2006	2.45112991333008
2007	2.73899006843567
2008	2.97855997085571
2009	2.46991991996765
2010	2.76079
2011	2.92988
2012	3.40642
2013	3.28615
2014	3.35627
2015	2.66803
2016	2.56127
2017	2.44386
2018	2.50111