Year	% of GDP
1970	0.28417704148638034
1971	0.20232745887866946
1972	0.1334026536992387
1973	0.14134103149217705
1974	0.11601669615715565
1975	0.09677839146550002
1976	0.005443361122368725
1977	0.0862229200120371
1978	0.0667469049066716
1979	0.0911523479278097
1980	0.17658375697338058
1981	0.13965738646728607
1982	0.3103800296397461
1983	0.21492125730851816
1984	0.26557851127435506
1985	0.34432328358053055
1986	0.719382155354867
1987	0.3492783215379891
1988	0.8084700002370153
1989	0.8313918670717266
1990	0.7570951074658265
1991	2.3159047386812976
1992	-0.001905834502129533
1993	1.7397808466818716
1994	2.7370577468071944
1995	5.588869138361698
1996	1.88243367340226
1997	3.830398636265843
1998	8.61672277532109
1999	22.95396429270394
2000	8.68141509900555
2001	7.515726815872934
2002	6.888405483435105
2003	1.7968934340748626
2004	4.376489265495245
2005	5.298757809776573
2006	5.212242598911219
2007	9.393030906262089
2008	8.003875182838897
2009	2.0527174850007506
2010	0.12607630269143574
2011	1.215715959758501
2012	0.7735126541073629
2013	0.22442716663867757
2014	-1.4819241064024027
2015	2.0301393183398377
2016	3.0334724146582053
2017	4.541014295903262
2018	-0.24642108777743532
2019	3.093822361803907
2020	3.4209781648435134
2021	8.558917949361588
2022	7.771143472583833