Year	% of GDP
1970	0.8786796171171171
1971	0.7831632653061225
1972	0.3946570794247788
1973	0.8267004341534009
1974	0.7066055554166667
1975	0.5209215909090908
1976	0.8230024161925602
1977	0.3993333393046349
1978	0.6411808737151604
1979	0.990099739243807
1980	1.0166504210610872
1981	1.166802632517416
1982	1.0297795808117332
1983	1.4036256020301239
1984	0.8369938056693086
1985	1.0161796415390631
1986	1.7836435250434264
1987	1.7852476139601905
1988	1.5852550860036139
1989	1.4335842744963005
1990	1.008215479845289
1991	1.5207272239526322
1992	1.2096668725640731
1993	0.8278620935698939
1994	1.9819614041998315
1995	2.5058799984481674
1996	2.125519177827629
1997	2.451009935689696
1998	2.2883685512407688
1999	2.2084843362966247
2000	2.4771921250544646
2001	3.7760780564579925
2002	2.486857500212762
2003	2.371880320950912
2004	3.068210351543643
2005	2.742201342186429
2006	2.168728074441117
2007	2.8139417023928703
2008	2.561500567808358
2009	2.083037848831434
2010	2.7614057294455274
2011	1.9442230134269944
2012	1.4525883570480909
2013	3.8365268471118195
2014	2.084140770762719
2015	2.9877280867532026
2016	3.4974221634297047
2017	2.781014590318362
2018	3.013387108184821
2019	2.294365876378017
2020	2.8125094505933665
2021	2.5701236922507094
2022	2.672248456747707