Year	% of total secondary
2005	12.7051296234131
2006	12.8764495849609
2007	14.4132204055786
2008	14.2567596435547
2009	14.8329696655273
2010	15.0658798217773
2011	15.707859992981
2012	16.1840000152588
2013	15.4894304275513
2014	16.1572303771973
2015	16.3956108093262
2016	16.9410705566406
2017	17.6420497894287
2018	18.6409091949463
2019	19.1559391021729
2020	19.5792407989502
2021	19.9426708221436
2022	20.0809307098389