Year	% of GDP
1970	0.019158959071889102
1971	0.021283933785035496
1972	0.06708922158860568
1973	0.19279484792597817
1974	1.2724784514342367
1975	1.323700901690858
1976	1.5049706067175168
1977	1.5247990072243278
1978	1.2416386102680725
1979	2.7138020648534185
1980	2.9064443554643487
1981	2.09979557207479
1982	1.36786451018722
1983	1.557144049629762
1984	1.5854940560374666
1985	1.5181665527158412
1986	0.573761702965632
1987	0.7279884293377953
1988	0.46133303827823274
1989	0.657585250145641
1990	0.8898929742619676
1991	0.4675205335037273
1992	0.46729731894493104
1993	0.41325985979989127
1994	0.31565659047301114
1995	0.3042826031830949
1996	0.40914408574374145
1997	0.3724997266876163
1998	0.19807790415159662
1999	0.3163480249221008
2000	0.6173402429811276
2001	0.4723493134741704
2002	0.47897814217269147
2003	0.4998540706632655
2004	0.652492094936452
2005	0.9402098921119558
2006	1.039583658691129
2007	0.9401093925057377
2008	1.1739105978108355
2009	0.5678717215519242
2010	0.7669216159038899
2011	1.013438302194285
2012	0.8772916759829299
2013	0.79336009203018
2014	0.6936644298574112
2015	0.2817044298788741
2016	0.2085483970641903
2017	0.27013291951550206
2018	0.3613388214168602
2019	0.26011202095020686
2020	0.09960353547946527
2021	0.2748820337751593