Year % of government expenditure on education 1973 7.6171 1975 7.79373 1979 11.82156 1980 15.50862 1981 16.28131 1982 16.62072 1983 17.64706 1984 20.78702 1985 17.30815 1986 21.01291 1987 19.2426 1988 17.2139 1989 17.13256 1990 17.14359 1991 12.4171 1994 14.9825 1995 14.13165 1996 12.21365 2009 18.19491 2010 16.42822 2011 17.75958 2012 18.72904 2013 21.12484 2014 20.16606 2015 19.38278 2016 12.12355 2017 12.96432 2018 20.74192