Year	% of GDP
1960	10.53721655207755
1961	9.079271294928606
1962	9.832003655150599
1963	8.828416465498323
1964	7.986714719807788
1965	7.7883332024809615
1966	7.593026344384614
1967	7.567145010888381
1968	7.322666175281267
1969	6.679956570492854
1970	6.62779041830419
1971	6.0666799817393295
1972	6.776281735863043
1973	6.77511908409705
1974	5.4120018340911695
1975	4.813122148925706
1976	4.559227033292738
1977	4.316068407826418
1978	4.170491314225394
1979	4.133497400868888
1980	3.6073665803395536
1981	3.531672500171574
1982	4.052635800330723
1983	3.595475563863541
1984	3.358980524164463
1985	3.3376490882142935
1986	3.234609548782464
1987	3.08814544214079
1988	2.8493917629956282
1989	3.1249968659771485
1990	3.136835031408216
1991	2.614350946455315
1992	2.592877169683364
1993	2.295732756394036
1994	2.400694315545735
1995	2.4447722308546607
1996	2.4042815184633297
1997	2.3442558151947317
1998	2.362459834188429
1999	2.2362614106077165
2000	2.0983575513075
2001	2.1070081913925365
2002	2.0108588519292696
2003	1.8501642887016716
2004	1.8226909441737444
2005	1.6801017042253124
2006	1.5184906428100302
2007	1.6129929533934975
2008	1.5152229996285849
2009	1.3231619967135262
2010	1.6040282886338773
2011	1.6502871934040981
2012	1.6317950367770264
2013	1.4586321769100443
2014	1.5563561598593334
2015	1.6056443865445917
2016	1.4371148666885394
2017	1.5424147738897338
2018	1.648876616062414
2019	1.5224592689225416
2020	1.579493250589344
2021	1.6172298828432554
2022	1.9136506040714003
2023	1.9241553993792588