Year	% of GDP
1971	3.16105008125305
1973	3.3502299785614
1974	3.39091992378235
1975	3.22102999687195
1976	2.67658996582031
1982	2.5155200958252
1983	1.68909001350403
1984	2.42835998535156
1985	3.431960105896
1988	5.10365009307861
2000	2.461669921875
2004	4.95237016677856
2010	1.72739994525909
2011	2.29890990257263
2012	1.79746997356415
2013	1.87114000320435
2014	1.91472005844116
2015	2.32152009010315
2016	2.13789010047913
2017	2.25363993644714
2018	2.13052010536194
2019	2.30800008773804
2020	2.57200002670288
2021	2.63599991798401
2022	2.56100010871887
2023	2.55200004577637