Year	% of GDP
1970	1.6093285405798847
1971	1.1689464307469104
1972	1.047049965211619
1973	1.4616879725226184
1974	1.7925224643296478
1975	0.9071964440984872
1976	1.0610838222087926
1977	0.9983254414906519
1978	0.7906896669589195
1979	1.0484703791613947
1980	1.071135622678287
1981	0.6010571518048712
1982	0.6635193928862252
1983	0.7235437073618283
1984	0.6635888881721853
1985	0.6429596594276448
1986	0.4936060758213348
1987	0.7338246605955911
1988	1.6111398555282688
1989	1.4029840295994855
1990	1.007966084330393
1991	0.5647817228590806
1992	0.457029107841917
1993	0.2548743870406102
1994	0.3408304169093149
1995	0.4670171546204888
1996	0.38041303159240136
1997	0.32970210914541065
1998	0.24993765351815606
1999	0.2943460217936803
2000	0.32923611204816083
2001	0.27366475314423366
2002	0.2970673836144383
2003	0.37655154507603644
2004	0.7230090905730671
2005	1.0425453205942095
2006	1.7357432207581542
2007	1.9892213278339053
2008	1.7376998936312855
2009	0.9713457908985276
2010	1.7139556138574892
2011	1.9818980344009103
2012	1.5036714758489569
2013	1.3078162667106974
2014	0.8951578905944623
2015	0.6282859823221031
2016	0.7711961799915829
2017	0.9656231687926782
2018	0.9737519068495265
2019	0.5953318212339263
2020	1.0289379136978782
2021	3.6865063328383996