Year	% of GDP
1965	17.156247972474244
1966	17.572053366517988
1967	17.45904930325462
1968	17.22832921339316
1969	17.82981909486375
1970	19.135388567247897
1971	19.263424151792492
1972	19.084564156357587
1973	20.27998139687774
1974	24.899500610928413
1975	33.212558860009075
1976	28.062307543896093
1977	30.139208357453395
1978	26.260591999858196
1979	23.91205073509108
1980	27.90420512362905
1981	32.85046284695651
1982	29.84955860061435
1983	25.52012554648073
1984	22.344739588427608
1985	20.51769959285051
1986	16.86901191275214
1987	17.181830724894382
1988	20.94341847411874
1989	23.39225712431599
1990	19.070976150204864
1991	30.501049577204643
1992	29.69949756118061
1993	31.260230911106568
1994	27.790136780015168
1995	27.23965389645157
1996	25.6621170222452
1997	26.5202283246645
1998	27.22344707318124
1999	27.248221473686062
2000	27.742124134521973
2001	28.65520099051783
2002	29.828104630516922
2003	31.07836097676126
2004	33.46346026590016
2005	33.341826376060695
2006	30.82531364377698
2007	30.905361768051804
2008	32.86050847159416
2009	32.34627816000557
2010	29.622966160566627
2011	26.897214740598262
2012	29.142488620767736
2013	30.427436519887017
2014	30.64272095212179
2015	29.3948493413425
2016	27.072795895041352
2017	29.609655168488054
2018	32.1211172321142
2019	31.92084170442807
2020	27.68357793640222
2021	28.27962983051464
2022	30.082757139522286
2023	30.86467747747101