Year	% of GDP
1970	0.9456936592546293
1971	0.8072736899161737
1972	0.6177906621303366
1973	0.7391858263144613
1974	0.7451767661727299
1975	0.6698055722856857
1976	0.516099049597699
1977	0.351411607215655
1978	0.43775388984969005
1979	0.3498665903817832
1980	0.3055771367826518
1981	0.4864238084137
1982	0.3953146779287589
1983	0.4193094718159806
1984	0.3988971306621676
1985	0.4937027429860209
1986	0.45534400770496875
1987	0.49786940163833965
1988	0.7214650780483687
1989	0.7751984561162409
1990	0.6883374385649349
1991	0.9537285886796361
1992	1.270128756620479
1993	1.6683913771798515
1994	1.9835819870146751
1995	1.9155911984162939
1996	2.1352159857999427
1997	2.5636296594283174
1998	2.5812643707483534
1999	2.9051968882129144
2000	2.431193372076514
2001	2.712797697482806
2002	2.5095759743177655
2003	2.2874465676639826
2004	2.524020576916671
2005	3.0394499530042136
2006	3.1801679129543103
2007	3.5624982148713586
2008	3.423908253696252
2009	2.498728165950923
2010	3.0819252475902803
2011	3.0422876387998694
2012	2.6574258158447064
2013	2.7029448832365337
2014	2.3808494272503706
2015	2.3782681607073064
2016	2.034489632526637
2017	1.855127331587508
2018	2.014095288619125
2019	1.7555715250439206
2020	1.7887786087355824
2021	2.105860534520589
2022	1.590225335650888