Year	% of GDP
1970	0.0051141551062762
1971	0
1972	0
1973	0.00377188502015777
1974	0.0269660606056411
1975	0.00820324863047319
1976	0.0140474733731578
1977	0.032685286349892
1978	0.0294454023363182
1979	0.0327746442897844
1980	0.0294504511534311
1981	0.0219322039261579
1982	0.0183773124723322
1983	0.022804032364213
1984	0.121562823943788
1985	0.0204690367109382
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0.0060739783279962
1996	0
1997	0.0954041781636716
1998	0.065884800357196
1999	0.00103001039945991
2000	0.0022839421705727
2001	0.00247605641527164
2002	0.00261251032273135
2003	0.00116371374196527
2004	0.0229428335169691
2005	0.22084942348025
2006	0.299794983757293
2007	0.373375851231499
2008	0.259876597923336
2009	0.259600588912084
2010	0.308153599011326
2011	0.453708188345834
2012	0.343742842769807
2013	0.146524133755415
2014	0.071946469299858
2015	0.100901481382659
2016	0.0989601085722921
2017	0.0744665106290883
2018	0.422039369560076
2019	0.088770305876397
2020	0.208663520694245
2021	0.830100168425339