Year	% of total secondary
1999	33.097770690918
2000	34.2107315063477
2001	34.4077110290527
2005	39.1466789245605
2006	38.8414001464844
2007	38.6164207458496
2008	42.8360290527344
2009	42.0027008056641
2010	41.8568801879883
2011	41.159740447998
2012	41.0659217834473
2013	41.1196899414062
2014	38.777458190918
2015	39.6391716003418
2016	39.7225189208984
2017	40.8938484191895
2018	39.8791007995605
2019	41.4458808898926
2020	43.4509887695312
2021	41.9693603515625
2022	42.8731918334961