Year	% of GDP
2004	9.309128805294806
2005	9.11892325580216
2006	9.832824826228148
2007	10.883518426744406
2008	10.341905625487986
2009	10.316212124910079
2010	10.507787413115716
2011	11.405232227169208
2012	11.3616557186606
2013	12.100069598484728
2014	13.166392750921291
2015	13.76871095381183
2016	13.8673744068475
2017	13.058663502458383
2018	12.859434827116406
2019	13.583544215244931
2020	12.866605254742527
2021	14.202449642663364
2022	14.187562077212759