Year % of government expenditure 1998 17.1350708007812 2002 15.789719581604 2008 29.2331199645996 2011 21.4148693084717 2012 18.4915103912354 2013 16.0707302093506 2014 18.8928909301758 2015 13.3536500930786 2020 11.4759998321533 2021 10.28600025177 2022 10.4759998321533