Year	% of GDP
1970	0.0928289559132762
1971	0.11524031846977618
1972	0.10225348611761961
1973	0.11411987522158856
1974	0.6151654108213184
1975	0.7037204486811505
1976	0.8532430119513738
1977	0.9401597350919312
1978	0.9038552972687426
1979	2.122844885864367
1980	0.8457120266109631
1981	1.3000025916491678
1982	1.0994660605021676
1983	1.4204583877920443
1984	1.3974499996560803
1985	1.6855019536364972
1986	0.7720092292830846
1987	0.9370747968541747
1988	0.6965814243319725
1989	1.125758521707273
1990	1.493112487930198
1991	0.9716844074553744
1992	0.7980702824104112
1993	0.6947581795096504
1994	0.6576942252315371
1995	0.710487628562694
1996	0.7882100504256392
1997	0.7024376627907211
1998	0.3532598360745381
1999	0.5915132282633803
2000	0.9634693331088058
2001	0.7181504297527749
2002	0.7498926571818579
2003	0.7219025167144962
2004	0.8977741768120222
2005	1.1110134965671516
2006	1.1487811690838619
2007	1.033882820253407
2008	1.371252163840072
2009	0.566157956273835
2010	0.7313911924874134
2011	1.1823857625201613
2012	1.1561463658471574
2013	1.0510122370161206
2014	0.840666602714059
2015	0.31739253804026973
2016	0.19022018896798829
2017	0.27555531265425587
2018	0.3919531411338762
2019	0.2717813658440852
2020	0.12604012822141106
2021	0.28853779147757147