Year	% of total expenditure in secondary public institutions
2003	92.66375732421875
2004	92.72561645507815
2007	92.3839263916016
2009	92.1728286743164
2010	91.9779281616211
2011	93.7843933105469
2012	92.99157333374026
2013	94.144775390625
2014	94.3162841796875
2015	94.33847808837896
2016	94.1740188598633
2017	94.5040397644043
2018	93.3686294555664
2019	92.94524383544925
2020	92.11864471435544