Year % of government expenditure 1998 17.2559204101562 1999 16.7619400024414 2002 19.7662296295166 2004 20.8404808044434 2006 17.5405807495117 2007 18.3287506103516 2008 18.2409896850586 2009 15.886549949646 2010 14.2168998718262 2011 15.1532802581787 2012 16.1219997406006 2013 14.7782297134399 2014 16.282190322876 2015 16.7482299804688 2016 17.8430099487305 2017 16.4125804901123 2018 17.5690002441406 2019 15.1536998748779 2020 17.0900001525879 2021 15.1129999160767