Year	% of total secondary
1998	5.16068983078003
1999	5.34114980697632
2000	5.50672006607056
2001	5.58762979507446
2002	5.79206991195679
2003	6.38178014755249
2004	6.3966498374939
2005	7.65611982345581
2006	8.19814968109131
2007	8.47824001312256
2008	8.87329959869385
2009	9.27793025970459
2010	9.62110996246338
2011	9.81425952911377
2012	10.1557302474976
2013	10.644889831543
2014	10.8349800109863
2015	10.89857006073
2016	11.15452003479
2017	11.516489982605
2018	11.8850002288818
2019	12.0387697219849
2020	12.3252696990967
2021	12.4392404556274
2022	12.6957597732544