Year	% of total secondary
1999	93.5528411865234
2000	93.3610382080078
2001	93.3056030273438
2002	92.7791137695312
2003	93.785026550293
2004	94.0828704833984
2005	94.2693176269531
2006	95.1910781860352
2007	95.1530532836914
2008	95.5246963500977
2009	95.3824234008789
2010	95.3560791015625
2011	95.3470916748047
2012	95.515869140625
2013	95.5425796508789
2014	95.7415618896484
2015	95.9518737792969
2016	95.9192886352539
2017	96.0615921020508
2018	95.9861679077148
2019	96.2531661987305
2020	96.427490234375
2021	96.5830535888672
2022	96.6126937866211