Year	% of total secondary
1999	31.5912303924561
2000	31.6437702178955
2001	31.4476795196533
2002	31.2411594390869
2003	31.1387805938721
2004	31.3006191253662
2005	31.9327507019043
2006	32.2988700866699
2007	33.1881790161133
2008	33.2266693115234
2009	33.6006393432617
2010	34.1178512573242
2011	34.4527206420898
2012	35.1073303222656
2013	35.4041213989258
2014	37.300609588623
2015	37.1742286682129
2016	37.715950012207
2017	37.3333282470703
2018	37.6711502075195
2019	37.7409515380859
2020	37.6437110900879
2021	37.4775505065918