Year	% of total secondary
1999	18.8537292480469
2000	18.6074295043945
2001	18.3953990936279
2002	18.1149101257324
2003	18.4734802246094
2004	18.9452991485596
2005	19.6627597808838
2006	20.1162395477295
2007	21.1738204956055
2008	21.876579284668
2009	22.2675094604492
2010	23.0587196350098
2011	23.9361991882324
2012	24.7803401947021
2013	24.534740447998
2014	26.2395496368408
2015	26.4209308624268
2016	26.9687004089355
2017	27.0861206054688
2018	27.5843906402588
2019	27.8393402099609
2020	27.8338108062744
2021	27.9116592407227
2022	27.8327198028564