Year	% of GDP
1997	14.178144329896908
1998	17.86676354736319
1999	22.47671891087976
2000	22.59953881629516
2001	18.104634118840906
2002	13.798489886395124
2003	11.95045417010735
2004	11.243182806189218
2005	11.622435627412067
2006	7.8243941226277105
2007	6.551413226476802
2008	17.090782940692424
2009	11.728343079701046
2010	4.652467761579114
2011	4.0589370669567675
2012	9.537621847603672
2013	12.50574568401105
2014	7.3800815649096645
2015	8.12844189361107
2016	8.830897025492842
2017	8.21135902626163
2018	10.25517844099433
2019	11.856626582913004
2020	5.099426460734087
2021	1.6957444423465335