Year	% of GDP
1960	19.409119774633133
1961	19.04278933378256
1962	18.57866081115283
1963	18.705287412637844
1964	18.66418670073602
1965	18.253990427914484
1966	19.146235644229414
1967	18.605798244174604
1968	18.43220980369885
1969	17.856630543004776
1970	18.306919040431644
1971	18.93679108561194
1972	18.403217393910705
1973	20.977787796389094
1974	27.771185759228054
1975	27.237243753513464
1976	27.564237010087755
1977	28.27782551162412
1978	29.421849877621025
1979	30.69772494414863
1980	35.13660518039658
1981	31.776627091995767
1982	30.774278864280227
1983	28.57062033211905
1984	28.47470709205508
1985	27.06713590573114
1986	25.42699516815277
1987	28.255456099044114
1988	30.99716177489862
1989	30.204668523420583
1990	29.094869072274154
1991	31.203938325952347
1992	32.68551367032956
1993	32.88408842936613
1994	33.82443495471345
1995	35.639069562213706
1996	34.92189806988316
1997	35.6765828152063
1998	34.10972800626763
1999	37.522861428636084
2000	41.442866103413806
2001	40.7828457355392
2002	43.22803455334964
2003	46.30715895258251
2004	50.750542218149555
2005	52.166506927681866
2006	53.06541972432276
2007	51.98759244834316
2008	53.411103786820455
2009	42.79819734904275
2010	45.825631955226626
2011	47.84452645940686
2012	46.891987761919935
2013	45.61470512546544
2014	43.98716652105121
2015	39.97933541444205
2016	37.3626560851425
2017	38.78454520605187
2018	40.77551257290817
2019	39.17180394814426
2020	37.73338986061706
2021	41.98363712285912
2022	44.99179528773775
2023	41.52327829570715