Year	% of GDP
1970	0.7138847755335203
1971	0.5170274275129638
1972	0.48954246335862406
1973	0.2522967818187137
1974	0.5388911888506138
1975	0.57922687095816
1976	0.44049765569598104
1977	0.27197207799936607
1978	0.42571585517462796
1979	0.14206625213226295
1980	0.10210915400572268
1981	0.057990877783145524
1982	0.15989407440796177
1983	0.14689007462625783
1984	0.46724652707067466
1985	0.7303280266022452
1986	0.5008704183691007
1987	0.9002723354279558
1988	1.0973817411254458
1989	1.61912082862846
1990	1.5261055024118553
1991	0.6001899636745326
1992	0.45029499699982695
1993	0.4454545175123983
1994	0.5543032188765897
1995	0.45650892153956973
1996	0.8180612303781689
1997	1.3025692466793999
1998	0.28800117368763334
1999	1.1211046050164502
2000	5.620718029582263
2001	-0.5918950111994522
2002	0.6536870208057756
2003	1.0624597935284037
2004	0.2083975361629563
2005	0.6352844712396747
2006	1.518863773058538
2007	4.181074519735642
2008	3.780893419507161
2009	2.811755101404626
2010	4.2978402859138125
2011	3.7620720391279674
2012	5.047850102279667
2013	2.3864782730803302
2014	3.4844548254506136
2015	1.8026979372540244
2016	3.007461937961989
2017	3.500168997107632
2018	3.1251416299386254
2019	3.0761089465806895
2020	1.9693722534696683
2021	2.2046461506691895
2022	1.9500671715348898