Year	% of GDP
1970	15.146292318155039
1971	16.163215373177458
1972	15.351806117381278
1973	20.66015376459218
1974	18.30433830623795
1975	15.883549064687486
1976	14.718349582145404
1977	16.729588084179227
1978	19.129660015468357
1979	24.014810003018106
1980	22.944689576260892
1981	15.911260300266141
1982	14.409087217523059
1983	15.050849165830481
1984	18.056534094616275
1985	19.253439791166578
1986	20.677987948263567
1987	19.252329161607427
1988	19.180643984519403
1989	14.979994411552783
1990	16.556623744286817
1991	14.361133960205425
1992	17.33781957691884
1993	14.453225097615377
1994	32.16315583886898
1995	23.780838148392
1996	16.359274768721143
1997	19.624492568630814
1998	15.227546667735705
1999	17.605458156714864
2000	30.918962876521917
2001	30.29488766210447
2002	24.20873268574749
2003	23.482031182655803
2004	27.311617457148852
2005	50.33011234460789
2006	56.082254279814315
2007	68.2455194060077
2008	67.5996578323529
2009	69.64978701327313
2010	62.54570337375371
2011	45.027358346346695
2012	32.58967329243407
2013	33.072513336006296
2014	37.524750445913
2015	43.64863857842985
2016	44.65597081473168
2017	47.075515052960974
2018	44.01166043107463
2019	42.65119327464599
2020	37.81700554008549
2021	41.28599772669998
2022	41.76957074786668
2023	41.7501202846086