Year	% of total secondary
1998	6.89454984664917
1999	6.88960981369019
2000	6.85072994232178
2001	6.65734004974365
2002	6.50312995910645
2003	6.47977018356323
2004	6.60023021697998
2005	6.98094987869263
2006	6.77657985687256
2007	7.07343006134033
2008	7.29062986373901
2009	7.71575021743774
2010	8.51041030883789
2011	8.89614963531494
2012	9.03499031066895
2013	9.3898401260376
2014	9.62759017944336
2015	9.81371974945068
2016	9.75024032592773
2017	9.90357971191406
2018	9.90752029418945
2019	9.96850967407227
2020	10.4651498794556
2021	10.2875604629517
2022	10.3922395706177