Year % of government expenditure 1982 0 1984 0 1987 0 1992 11.933500289917 1998 13.3818197250366 1999 14.7167997360229 2000 14.5736999511719 2002 15.6877899169922 2003 14.8870000839233 2010 26.4080009460449 2014 23.0475997924805 2015 22.2829093933105 2016 21.3254795074463 2017 22.4333000183105 2018 22.7609996795654 2019 23.9409999847412 2020 22.6879997253418