Year	% of total secondary
1999	11.7897996902466
2000	11.4833097457886
2001	2.36273002624512
2002	11.1167097091675
2004	12.9647598266602
2005	12.9503698348999
2006	13.5398397445679
2007	13.3613300323486
2009	14.0687103271484
2010	13.819580078125
2011	13.8019504547119
2012	13.8228397369385
2013	12.9140701293945
2014	13.2521095275879
2015	13.6141395568848
2016	14.6816101074219
2017	15.200909614563
2018	15.6388597488403
2019	15.6276798248291
2020	15.5273704528809
2021	15.316650390625
2022	15.4694795608521