Year	% of GDP
1970	12.121357275415804
1971	12.119041195151448
1972	12.118913752798537
1973	12.123242470513791
1974	12.132595450494687
1975	12.112991921679614
1976	12.107465105582778
1977	12.118276345393285
1978	12.144882933044471
1979	12.179362854089753
1980	12.014972267370059
1981	12.079830928497543
1982	12.172330277588138
1983	12.277918685088064
1984	12.351761410682627
1985	11.193021537900176
1986	12.404122819134194
1987	12.634827720809149
1988	12.805860189268707
1989	12.720974168929997
1990	13.040549053701477
1991	12.775946796913013
1992	12.426619379304297
1993	9.57115301865687
1994	7.899807701605289
1995	6.883297723111164
1996	7.133444054010364
1997	7.1868114983827445
1998	6.1174220512051845
1999	6.124179678630013
2000	6.601255013839177
2001	6.379567204504709
2002	5.945728703055924
2003	5.74521185921362
2004	5.474439180169097
2005	4.363652218426943
2006	3.405014523309343
2007	3.9081016792397776
2008	3.8170386950036423
2009	3.9304123711340204
2010	3.6142892675040414
2011	3.6048702710537763
2012	3.850097756388346
2013	3.9249235236169437
2014	3.9377058895731385
2015	3.8357541591685336
2016	3.9383388496721565
2017	3.800181012429359
2018	3.7823729482358903
2019	3.5673263229544143
2020	2.761947168095924
2021	0.8819409634203133
2022	0.8002623127631358