Year	% of GDP
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0.013461619902946283
1991	0.010727573421066706
1992	0.010904829408315652
1993	0.018914485303858884
1994	0.019697941745791175
1995	0.02041310026387198
1996	0.019252240944480806
1997	0.017159704083330493
1998	0.011771972138544966
1999	0.016714312550070276
2000	0.025842154942017262
2001	0.0386088533846067
2002	0.0362606033294471
2003	0.021156560395446094
2004	0.03917669621107751
2005	0.023369417931145886
2006	0.06480522528920149
2007	0.055310826880010905
2008	0.06387359278598137
2009	0.05132699577090953
2010	0.05441615990717853
2011	0.06818567039116501
2012	0.07507844785632314
2013	0.0766527231070352
2014	0.06844221227507755
2015	0.05910514647063505
2016	0.050365660515348354
2017	0.07943075233744544
2018	0.12498901393466758
2019	0.12125968851001497
2020	0.09651321787699386
2021	0.14241606174009708