Year	% of total secondary
2003	6.71645021438599
2005	8.74973964691162
2006	7.01248979568481
2007	6.88502979278564
2008	6.65408992767334
2009	8.14778995513916
2010	10.5273199081421
2011	11.8768196105957
2012	11.946249961853
2013	13.1240100860596
2015	13.5556602478027
2016	12.9369201660156
2017	13.0561399459839
2020	11.058819770813