Year	% of GDP
1999	12.991751123104523
2000	13.61538199491279
2001	11.662412690896176
2002	12.632797141002314
2003	13.161625947038994
2004	12.814091456061352
2005	16.52877056797682
2006	17.09216343550117
2007	15.817953790809819
2008	17.091717861688156
2009	15.789236380223898
2010	14.997505767077019
2011	17.840049274447107
2012	17.633315422700083
2013	16.89868433928324
2014	17.294347838416048
2015	20.451365421132245
2016	19.630119809656126
2017	20.052367699608247
2018	20.142552513803604
2019	19.196140096620788
2020	19.151400299287594
2021	19.08232277210394
2022	16.69150738082813