Year	% of GDP
1970	1.4589919439401315
1971	1.0607213893294118
1972	0.9476574187171406
1973	1.3099752021731461
1974	1.6183273068640154
1975	0.8358464621614767
1976	0.9776211112584798
1977	0.9185987004683299
1978	0.712572607777575
1979	0.9601240942952997
1980	1.001225782125698
1981	0.5679075608419845
1982	0.608290532130973
1983	0.6692087553141888
1984	0.6131228781111765
1985	0.5925755318577077
1986	0.4456104242038601
1987	0.6617387349197166
1988	1.513994283458495
1989	1.3556499915009184
1990	0.960751552433523
1991	0.5475856873469869
1992	0.4435309779039854
1993	0.24719281068199814
1994	0.33018883851688186
1995	0.45643812928877164
1996	0.37317859077199667
1997	0.32102723504641373
1998	0.24119808770475482
1999	0.28296729681645966
2000	0.32471680750395576
2001	0.2642449045217002
2002	0.28623622749739985
2003	0.3676943981332786
2004	0.7050821689905702
2005	1.007593328543903
2006	1.684877248344806
2007	1.9735575377721855
2008	1.6848990004537758
2009	0.9399852835959757
2010	1.669761068048403
2011	1.9285875402603614
2012	1.4587879770507364
2013	1.2661747598501796
2014	0.8684514253056661
2015	0.6034683731555103
2016	0.7371935885940822
2017	0.9274338616220151
2018	0.9369294283206023
2019	0.5739079176801924
2020	0.9815461905247965
2021	3.5934704019770707