Year	% of GDP
1970	0.8820379740792971
1971	0.9668421322624217
1972	1.2360849882459641
1973	1.8346150924685753
1974	7.95556631896022
1975	6.809780926753067
1976	7.645724880023146
1977	7.637288241827139
1978	7.399817384610064
1979	11.458198135778911
1980	11.865088532639081
1981	7.645458505464348
1982	5.805401001827186
1983	6.503660232315987
1984	6.675948628982204
1985	6.488094599810199
1986	2.981583985864123
1987	4.455184215840681
1988	3.4545001724456275
1989	4.517883596648693
1990	5.571701760884706
1991	2.6322459096840913
1992	2.5861708396579726
1993	3.0572725650995087
1994	2.553727948153538
1995	2.6248310411892524
1996	3.0779054025616173
1997	2.691331961564953
1998	1.5471644569579805
1999	2.3179395654462165
2000	4.039815624570206
2001	3.053613412642775
2002	3.0683469868702544
2003	3.1590734953115684
2004	3.9190853532901713
2005	5.13306654496218
2006	5.278221187077404
2007	4.672762752358574
2008	5.57088718661001
2009	2.938058813191535
2010	3.4478818015066803
2011	4.222560991222738
2012	3.9601072963998543
2013	3.363176397697341
2014	2.872599277521986
2015	1.3082239084037424
2016	1.073829641757065
2017	1.4458915890329012
2018	1.9735853601649591
2019	1.5675904072691245
2020	0.7705762471684211
2021	1.5131527392752333