Year	% of GDP
1972	25.9154023613309
1973	27.612090855483768
1974	27.903875489110145
1975	31.108477240100562
1976	31.619156907454528
1977	31.41366145358841
1978	33.85174939544496
1979	33.322423319909106
1980	33.47394153555258
1981	34.56544370556335
1982	34.99663509041548
1983	35.41600128581749
1984	35.705130238821056
1985	35.572995346268726
1986	36.27470207422464
1987	36.8555837633843
1988	37.16994186934527
1989	35.753463683996415
1990	35.59127017011997
1991	36.04260988689463
1992	36.69714891959518
1993	38.75647183479941
1994	38.6749163266011
1995	48.718401551452004
1996	48.73865514398747
1997	47.5228026402187
1998	47.25099659219988
1999	47.108735231462184
2000	46.26378843937694
2001	46.61558222765411
2002	45.97290619428247
2003	46.03612417465078
2004	48.60700877324228
2005	45.9123787174206
2006	45.18809615776304
2007	43.97791490656828
2008	44.57424381534011
2009	47.84835317879538
2010	46.4268097130133
2011	45.50768703543878
2012	46.14504854559053
2013	46.62162228914063
2014	47.50118769223362
2015	46.26845100272249
2016	44.99678488691317
2017	44.329887110437255
2018	43.72471037437269
2019	43.59882793077297
2020	50.55374478922254
2021	50.07795106433098
2022	47.88705561793135