Year	% of total secondary
2008	21.793909072876
2009	22.2011699676514
2010	25.7859497070312
2011	26.490140914917
2012	25.0830192565918
2013	24.3936405181885
2014	23.3379592895508
2015	23.8582096099854
2016	24.3247299194336
2017	24.8380393981934
2018	24.57839012146
2019	24.0405807495117