Year	% of GDP
1960	60.74531217359076
1961	59.81598165334729
1962	53.980051388756664
1963	49.49418857809334
1964	49.39959229800195
1965	50.68167433067091
1966	46.66475707027251
1967	48.5012288358287
1968	48.90710569716747
1969	48.49108805790252
1970	44.62296393969968
1971	44.011128115156836
1972	44.34080537805073
1973	42.04956697638744
1974	39.66622077191706
1975	37.782968633220285
1976	35.91028901786889
1977	37.665830548298764
1978	35.44378143370107
1979	33.95722108768634
1980	32.39696237804115
1981	32.01877475644697
1982	32.124378710797345
1983	33.490475377828105
1984	35.046837163964405
1985	39.78532225624648
1986	39.003181904549855
1987	37.93048025238554
1988	37.93249740668583
1989	39.168167616143236
1990	38.61749192515313
1991	39.82281169372099
1992	40.92125274640027
1993	40.75111446639217
1994	40.15356214446042
1995	39.27294633266653
1996	38.91643206737731
1997	39.327770682998676
1998	39.74696983092415
1999	40.92274185022484
2000	41.164426658756334
2001	42.78559894275419
2002	43.60236272227322
2003	43.226940773587145
2004	42.5057464802667
2005	42.545651956940134
2006	42.75547862872038
2007	43.45913267808927
2008	43.08186260959078
2009	44.457582312710265
2010	44.362454786732094
2011	44.40469989211567
2012	45.47484155637726
2013	46.80110796040399
2014	48.04602865732333
2015	50.38173122556104
2016	51.76105919869072
2017	52.02071300023763
2018	52.58229570260309
2019	53.52879647865688
2020	53.720616166631565
2021	52.71689347502841
2022	52.45324421083263
2023	53.71444533881129