Year	% of GDP
1960	27.329451121298476
1961	24.418229213653866
1962	24.10740548793299
1963	28.290939369015344
1964	29.89785749875436
1965	25.577714466603357
1966	25.567322239031775
1967	25.300332899117095
1968	23.940620782726047
1969	21.52869294357254
1970	23.352228520617984
1971	19.8162600019757
1972	19.389671361502348
1973	16.551497203027314
1974	14.71946746365983
1975	8.65040497268789
1976	11.388060311363542
1977	9.15264423076923
1978	13.652858118061296
1979	19.401362770421102
1980	19.443841846040126
1981	16.077170418006432
1982	8.381171067738231
1983	8.659425680702276
1984	12.692422639177508
1985	13.738524870531045
1986	12.810112119807702
1987	8.247098751209018
1988	7.5726713134833545
1989	7.954400699052212
1990	7.240720859285902
1991	7.464430308431863
1992	8.761088804718295
1993	7.062522977286411
1994	8.74053183100128
1995	11.791992333053127
1996	11.96111327359011
1997	13.359513678727966
1998	9.639047587596181
1999	12.251573896973332
2000	10.651409293253963
2001	11.51808263731614
2002	11.213279166144584
2003	11.386724833971208
2004	12.696880748759176
2005	14.17969997985741
2006	15.275413383371284
2007	16.725068527352434
2008	24.2801423442251
2009	18.613566308224208
2010	13.824482874760227
2011	12.85572394067415
2012	15.491728770006421
2013	16.51303567131133
2014	14.948210907576401
2015	12.877325314736899
2016	12.427164415680643
2017	16.661129421170536
2018	15.087053061151082
2019	17.109058016738253
2020	15.414798539728858
2021	15.781008169527574
2022	12.021995433333059
2023	13.388708029744144