Year	% of total secondary
1998	17.0018291473389
1999	19.3210697174072
2000	16.9347591400146
2001	16.8260707855225
2002	15.9075698852539
2003	15.8637599945068
2004	16.7177600860596
2005	17.311710357666
2006	17.2617702484131
2007	16.9668998718262
2008	17.6484699249268
2009	17.4405307769775
2010	17.4629096984863
2011	17.7325992584229
2012	18.1667098999023
2013	17.262279510498
2014	17.4902591705322
2015	17.6204490661621
2016	17.5207195281982
2017	17.4972095489502
2018	17.4754695892334
2019	17.3056106567383
2020	17.1744709014893
2021	16.4252109527588
2022	16.5544605255127