Year	% of GDP
1970	0.5902930292622134
1971	0.4979184448538697
1972	0.5293139088795616
1973	0.68151504410875
1974	0.5206875512012742
1975	0.628281082633392
1976	0.5739530805726599
1977	0.5197648021353559
1978	0.573123595371023
1979	0.82169715711923
1980	0.6447972292402667
1981	0.5940917328917006
1982	0.4219143106292159
1983	0.4713260559440427
1984	0.5687173399066007
1985	0.5112259042113267
1986	0.7847369096181493
1987	1.0582213647307748
1988	1.166137288545249
1989	1.4007791176839357
1990	1.4913559333844737
1991	1.1063095596098442
1992	1.0359783940604432
1993	1.1191532065743208
1994	1.316670339412644
1995	1.5220647495278794
1996	1.645595335001531
1997	1.9823167634140955
1998	3.0324073189615808
1999	4.476111091982091
2000	5.017022038657606
2001	2.9812641007446503
2002	2.233443920294541
2003	2.157480339924372
2004	3.193453460589769
2005	3.355675307362437
2006	4.972459796643912
2007	6.929833138698666
2008	5.053751666364267
2009	2.4411264371217882
2010	3.240834034657567
2011	3.8982316960219094
2012	2.7591154948769336
2013	3.2188308391660705
2014	2.476858623351903
2015	3.2829652786363375
2016	3.4414129902184105
2017	3.5803135285177454
2018	0.47561979491851725
2019	2.4315823362447575
2020	1.6488275740861142
2021	3.1321696266733636
2022	2.7838210928286826