Year	% of total secondary
1999	1.72071003913879
2002	2.82486009597778
2003	3.30679988861084
2004	4.39367008209229
2005	9.4048900604248
2006	11.0770797729492
2007	12.4414396286011
2009	16.992790222168
2010	16.6091709136963
2011	15.9126396179199
2012	17.4936103820801
2013	18.0576591491699
2014	17.4635105133057
2015	16.8228893280029
2016	18.8298892974854
2017	17.5609798431396
2018	18.544189453125
2019	22.5206604003906
2020	23.724739074707
2021	22.8775691986084
2022	13.3997297286987