Year	% of GDP
1960	14.558898521162671
1961	13.316110850164398
1962	14.616216216216216
1963	16.705632306057385
1964	15.53578816714936
1965	14.231838030964669
1966	14.316115302766494
1967	15.115240307307488
1968	15.11468675111263
1969	15.700295352090782
1970	16.340763024750444
1971	15.637550200803213
1972	16.018968309044645
1973	14.848343443770414
1974	12.709466811751904
1975	12.093604858878171
1976	11.223612570446079
1977	9.375
1978	7.919953066944789
1979	9.95599103213485
1980	10.500681427198998
1981	9.650742940814323
1982	9.98075998075998
1983	10.561537311200837
1984	8.46715113496639
1985	5.7509567012082385
1986	4.756148312558213
1987	5.512679162072767
1988	3.788083770766816
1989	5.345845032775739
1990	4.02284234619564
1991	3.3361650050937546
1992	5.245696820909225
1993	4.2300750917841485
1994	4.690437469456761
1995	4.969441971112983
1996	6.16027363926995
1997	5.343646745040406
1998	6.702106506978951
1999	7.779407238222283
2000	15.984557057728335
2001	9.560517861946801
2002	11.40958295368733
2003	12.252534118264785
2004	14.300391937677043
2005	14.458821843368987
2006	15.094925300160098
2007	16.90053412416891
2008	20.265431625962236
2009	14.554197994025314
2010	17.475606345745312
2011	12.478706028252127
2012	6.856452636730867
2013	9.506891168390135
2014	7.6089111228327555
2015	6.422910929185726
2016	5.004491007382467
2017	6.112144258212926
2018	7.650201984663925
2019	8.45298341762853
2020	5.125312694685977
2021	2.249870427799298
2022	1.5711618305558648
2023	1.1640762781309837