Year	% of GDP
1971	0.517917469033693
1972	0.5355974599119895
1973	0.5187914933863738
1974	0.5239672065601543
1975	0.4725968415317099
1976	0.4892061468061541
1977	0.4509822102038163
1978	0.4851833623003756
1979	0.6085305512560896
1980	0.5137819963431471
1981	0.6043455997003364
1982	0.43738635569897893
1983	0.489939227076459
1984	0.6547914910067083
1985	0.5702957088303832
1986	0.7565952153271635
1987	0.8087129523900728
1988	1.0381302262706085
1989	1.3657829327577748
1990	1.6288895624304194
1991	1.3251110695395332
1992	1.2405472996179652
1993	1.0997646989412775
1994	1.188401494321137
1995	1.3857628976943266
1996	2.0218333687605954
1997	2.206946274854364
1998	3.857991258315879
1999	7.188217544027126
2000	8.422189862939192
2001	5.774665676128459
2002	2.637793434903036
2003	2.6675525578040635
2004	3.778254568459809
2005	7.7184682178955075
2006	9.962110971251994
2007	11.454206613048672
2008	7.351467157237186
2009	4.139527097187003
2010	4.909653743057977
2011	6.3976134694826055
2012	4.350822481899926
2013	5.267659884450283
2014	4.034054641593918
2015	7.783590972674754
2016	5.605930209695031
2017	4.492306148815267
2018	1.3438533290880381
2019	2.747107070825434
2020	-0.2985866273815445
2021	4.934909209685573
2022	2.395641109596909