Year	% of total secondary
1999	25.660680770874
2000	26.0483207702637
2001	25.7430000305176
2002	26.8086109161377
2003	26.3329391479492
2004	28.9091796875
2005	29.5190696716309
2006	24.9549007415771
2007	24.8688507080078
2008	25.9549007415771
2009	27.4445304870605
2010	29.3161201477051
2011	29.4280490875244
2012	39.3604393005371
2013	66.039421081543
2014	69.4937133789062
2015	70.8283920288086
2017	74.0341186523438
2018	74.7603225708008
2019	75.621452331543
2020	76.0054092407227
2021	76.3936080932617
2022	76.9764709472656