Year	% of GDP
1972	4.600445717924228
1973	3.1711649265693365
1974	2.823311879955908
1975	5.1307910494799875
1976	5.167258195232373
1977	5.421656180231378
1978	4.8088064889918885
1979	3.80180859080633
1980	2.184183695449258
1981	2.9435153353968118
1982	4.492045113426819
1983	4.129463244418321
1984	4.046099658964755
1985	3.5458968808080247
1986	5.099690963977616
1987	6.247774103281608
1988	5.039595918574547
1989	4.567476490410911
1990	3.268665274570949
1991	3.758504312422992
1992	6.85124343566655
1993	8.028159013793612
1994	4.928520111618657
1995	4.832229876730853
1996	3.411351739382122
1997	3.0120293656437167
1998	2.3134950480276997
1999	1.66016624834377
2000	1.6183158765751369
2001	1.3439793042817438
2002	1.5354830768966123
2003	2.868850314800207
2004	3.166117190471665
2005	2.2066940386634855
2006	0.6417204065544713
2007	0.46751755203753587
2008	2.3765610136390425
2009	8.095946530366287
2010	6.768583654705421
2011	4.999568066450872
2012	4.2738336926365035
2013	5.5658702277660685
2014	5.246600495480763
2015	4.879863898323871
2016	5.0094613921580216
2017	5.826238561708146
2018	5.3984725524564805
2019	7.474989542591302
2020	12.55561927429463
2021	4.991882818018862
2022	3.6254049873409113