Year	% of GDP
1963	17.283982098765424
1964	20.31253802083332
1965	23.678154482758632
1966	27.495293032014988
1967	26.14034964912284
1968	27.545910684474094
1969	30.17242959770118
1970	39.75576553595662
1971	37.97313919413921
1972	40.296803652968
1973	38.93805331858396
1974	32.82325837796475
1975	34.99610265003894
1976	32.06162817314753
1977	26.59952742890999
1978	42.79661122881348
1979	44.078941588345806
1980	39.052013422818725
1981	39.53488372093017
1982	39.52539859102715
1983	38.6912751677853
1984	38.55959209687696
1985	37.98540145985409
1986	34.75530756668485
1987	35.576718167288256
1988	34.235622421742356
1989	32.89179796107509
1990	52.21588926369667
1991	52.33766971538939
1992	52.172406824677395
1993	53.251672744008346
1994	55.707629586488004
1995	52.166149982341125
1996	50.12787051796334
1997	50.205401493965915
1998	49.81798124655272
1999	50.63342653231947
2000	47.89637956731252
2001	50.31209439143236
2002	48.66976098763073
2003	48.3943762769383
2004	49.640805024570284
2005	51.459048336678904
2006	50.59166652256854
2007	49.1036752458193
2008	48.78259522386411
2009	50.475638845837686
2010	50.57908931883098
2011	50.79901841340446
2012	52.081154411584805
2013	51.31821600676232
2014	48.45819374593527
2015	49.13864947149851
2016	50.35118586028723
2017	50.546523227911244
2018	50.53119557422395
2019	51.237216567816255
2020	51.33959384904332
2021	51.4192514964235
2022	51.07843926064457
2023	51.72739218516595