Year	% of GDP
1960	29.23203560427028
1961	20.222501048031212
1962	18.542323549174235
1963	20.671856189471182
1964	24.52875561851244
1965	28.647633681426086
1966	29.223036420684444
1967	27.131687552474915
1968	26.848323845277456
1969	28.481725688151943
1970	30.213527987407574
1971	29.710556849084746
1972	30.05952908274121
1973	32.031532860381894
1974	33.82150089623321
1975	31.489243533235715
1976	32.438138264918656
1977	33.119323343641526
1978	31.625803478867898
1979	33.746852719698325
1980	33.815944801062905
1981	29.892074686347808
1982	29.039004922557904
1983	29.08405273143237
1984	28.692437711750983
1985	29.536809177522947
1986	26.536102094989673
1987	27.886242047063952
1988	27.90009048447591
1989	27.256452956264237
1990	27.279909907428685
1991	25.02943151990608
1992	25.124347004002274
1993	25.751319346764166
1994	26.133826856252156
1995	25.449323730617234
1996	25.8512178953763
1997	25.678236127490468
1998	25.432007930811647
1999	25.881247048667085
2000	26.676213938880245
2001	27.117627093131624
2002	28.433094377596728
2003	29.531863295028398
2004	31.347709079937957
2005	31.90065808402051
2006	33.41875660696905
2007	34.53253114807603
2008	35.84905849861549
2009	35.23020303671527
2010	36.286273110646285
2011	36.42159465804581
2012	36.187782406319094
2013	36.01131390266145
2014	35.90764990501209
2015	35.61485812161942
2016	35.23255044440587
2017	35.58812464498429
2018	36.492875279810775
2019	35.787233251292136
2020	36.718065817252764
2021	38.92730281027694
2022	38.814797230661796