Year	% of GDP
1970	1.1116993118051879
1971	1.364853722197004
1972	1.474823325526932
1973	2.1239093198992443
1974	0.7896513761467889
1975	1.0395093028597682
1976	2.4314537045843037
1977	1.8251134924651844
1978	1.5298528648262109
1979	0.6844618564917643
1980	2.6828779278403747
1981	3.5079277034687495
1982	4.183661439504523
1983	2.2053256215426305
1984	1.3723405010146366
1985	1.2823620817564403
1986	0.7122505627493374
1987	0.945825969695859
1988	0.6004201775475582
1989	0.771645303827403
1990	0.6299086721900989
1991	0.9595328286408858
1992	3.3927229694475507
1993	3.8464174268511675
1994	2.7634087189580097
1995	1.5305492758971977
1996	1.2168062002279774
1997	1.6518906777770335
1998	2.9845936965058892
1999	1.5138265272378548
2000	3.4960274713755637
2001	2.046216975018915
2002	3.415072205772731
2003	1.9650464763512743
2004	1.898889497232143
2005	2.208449194975966
2006	9.424733697291288
2007	3.893951598602182
2008	5.797386196007548
2009	3.5098811804244194
2010	2.888142317589814
2011	0.8990775349800393
2012	3.2851893396328338
2013	2.174412807439216
2014	2.038427468680126
2015	2.1199926059717917
2016	1.4034455864099284
2017	1.9233125677007012
2018	2.322476238739193
2019	1.9448812443060948
2020	1.4663418220258964
2021	1.169375290054569
2022	1.4428366739074527