Year	% of total secondary
2011	3.32048988342285
2012	3.43264007568359
2015	5.91405010223389
2016	5.38288021087646
2017	7.17702007293701
2018	6.5348801612854
2019	6.50360012054443
2020	6.58436012268066
2021	6.66145992279053