Year % of government expenditure 1997 13.3222303390503 1999 16.9598293304443 2000 16.7305107116699 2004 11.2293500900269 2006 14.92415571212765 2007 15.445520401001 2008 14.096960067749 2009 11.1912002563477 2010 10.21967029571535 2011 10.9246101379395 2012 11.0406303405762 2013 11.5139799118042 2014 11.3006601333618 2015 12.043999671936 2016 13.9820003509521 2017 13.548999786377 2018 12.0750002861023 2019 11.5920000076294 2020 10.7959995269775 2021 10.2209997177124