Year	% of GDP
2000	7.53223112128146
2001	6.73320088300221
2002	3.54143473570658
2003	4.30288770053476
2004	10.8763433667782
2005	11.1963645943098
2006	9.34722073279714
2007	13.6097305171158
2008	18.3261993047509
2009	15.7546662895928
2010	14.2368668668669
2011	15.1928315262719
2012	15.4526056596839
2013	19.1523247473101
2014	16.6676590330789
2015	16.8633238904627
2016	15.9434942550337
2017	16.2014911176686
2018	16.6820560172361