Year	% of GDP
1960	38.78246175469924
1961	38.32587519598464
1962	39.93584497224325
1963	38.095180299376246
1964	36.34082145864702
1965	37.450738194072464
1966	36.45979665561123
1967	34.609555507340914
1968	35.05413136384601
1969	34.30585260974932
1970	35.04687086249738
1971	35.80364908254331
1972	35.5216549188878
1973	32.94770561503505
1974	33.610595952108255
1975	35.1392413952858
1976	35.80372321551465
1977	34.66144961164541
1978	34.939364729472494
1979	35.52141472925318
1980	33.80725873570828
1981	33.87161863576137
1982	34.89683727774281
1983	34.52160063054068
1984	35.420816084961814
1985	36.114999772048925
1986	36.988467835644606
1987	37.45227949228939
1988	36.79644550543219
1989	37.22939797954959
1990	37.04478519464807
1991	37.78569002371795
1992	37.91256818206074
1993	38.49068491702259
1994	37.496302340928395
1995	37.849668118961866
1996	37.709329473597975
1997	39.07955152461622
1998	40.132568727165335
1999	41.96573778685435
2000	42.732926643553675
2001	43.8089612621243
2002	44.72882755216675
2003	44.70464565421432
2004	44.114858972247085
2005	44.44293292278043
2006	44.04323571146197
2007	44.00815792382453
2008	45.882549906824906
2009	45.984882811697794
2010	45.03374956256008
2011	45.44214525126499
2012	46.301147298037506
2013	46.698714769236716
2014	47.82241375563818
2015	47.78374812045879
2016	47.74940128999682
2017	47.67088996823814
2018	48.43156631566297
2019	50.08495785467073
2020	47.93268810922348
2021	47.847223459670055
2022	49.57693407349586
2023	49.79753546701028