Year % of government expenditure 1986 8.76023960113525 1987 9.8800802230835 1988 9.82437992095947 1989 13.0864200592041 1996 21.5640602111816 1997 18.4110298156738 1999 14.6642599105835 2016 12.1501598358154 2017 11.1960496902466 2018 9.82532024383545 2019 9.94909000396729 2021 9.72099018096924 2022 9.58022022247314