Year	% of GDP
1970	35.42600403785169
1971	37.645682705240986
1972	38.200942531727314
1973	37.812688078871616
1974	35.46985034157012
1975	30.90617532125745
1976	26.501294627388212
1977	26.69233109456947
1978	27.570203776425533
1979	28.0762754384299
1980	30.603291727179144
1981	30.90465488227587
1982	29.329432104274073
1983	30.011472184177713
1984	29.7663327631221
1985	30.138652453101187
1986	30.89992192828113
1987	31.217386394588846
1988	32.97142173767033
1989	33.504659575390235
1990	32.951146961743426
1991	31.579439022305905
1992	28.339059702556014
1993	26.545095156177933
1994	26.789225451232507
1995	26.726877836901302
1996	25.6022750363399
1997	25.678636871798428
1998	26.820177848283393
1999	27.25403897750958
2000	27.512042996442226
2001	26.86559279579232
2002	27.07893441390052
2003	26.53006491080157
2004	27.31186450963562
2005	27.26299805731348
2006	27.06025536820716
2007	27.207257667187353
2008	26.734272360272872
2009	25.214851666477582
2010	25.188629006001406
2011	25.51884898177607
2012	26.268903242650826
2013	26.227602887415074
2014	26.41818989209574
2015	26.411204107328423
2016	26.49981681521615
2017	27.14888894946646
2018	26.602693942677057
2019	26.622204186625243
2020	26.993909601720155
2021	26.3365697822668
2022	26.250458934080502
2023	25.930687018236377