Year	% of GDP
1960	19.037536211207133
1961	18.7600327629467
1962	18.309042296709464
1963	18.79961400549801
1964	18.59244838615973
1965	17.899847442768014
1966	17.37263677836055
1967	17.87559225616987
1968	18.508337476634846
1969	17.920308617780584
1970	18.579656795078293
1971	18.997127599291627
1972	18.11240269204721
1973	20.96814255889328
1974	28.136744311856926
1975	27.25049280961944
1976	27.09503519726391
1977	27.36259646802073
1978	29.395613579326966
1979	30.983082171807304
1980	36.41177180157519
1981	34.75846558590636
1982	34.78401880775911
1983	30.976907312708374
1984	30.27662486998084
1985	29.065357705760377
1986	27.58765326686406
1987	31.462801401916543
1988	34.07018774061362
1989	31.32965576002368
1990	30.274587927754915
1991	33.02114175734551
1992	33.86805843292798
1993	33.79016382947126
1994	34.84065699917787
1995	36.74966158164806
1996	35.93125815527161
1997	36.88310806719923
1998	35.32751728174891
1999	38.3886523055749
2000	43.03187431047033
2001	42.3224616552036
2002	45.423210011706956
2003	49.14565288141177
2004	53.776797857094536
2005	54.55240256713974
2006	55.46356456724884
2007	54.067909466389374
2008	53.83720159708357
2009	43.273719846118794
2010	46.55062528909323
2011	47.59770735840296
2012	46.62150659406143
2013	45.44184438488398
2014	43.897724875890546
2015	40.154526678242156
2016	37.50882602663411
2017	38.500582571981724
2018	40.3065261377381
2019	38.80231182922823
2020	37.98337594223286
2021	41.59880962698949
2022	44.41482144530919
2023	41.16852478939814