Year	% of GDP
1960	10.977756441030564
1961	10.47040971168437
1962	9.957203994293867
1963	11.182767960789372
1964	12.786885245901638
1965	13.636850562399571
1966	13.141562407644566
1967	12.689142553756305
1968	12.37737083060824
1969	12.780806979280262
1970	14.258379519662178
1971	14.381270903010032
1972	14.13031943117903
1973	14.738118962006672
1974	14.94506276001849
1975	17.154112826977624
1976	16.974540983148422
1977	16.67850619037954
1978	16.7372314823068
1979	17.087415222305953
1980	18.300616051811534
1981	18.90774293788767
1982	18.618937347227583
1983	18.070366949366026
1984	16.97109586524715
1985	15.900848537160917
1986	13.628011311434332
1987	12.619180870007632
1988	13.976174763524373
1989	14.551421161276663
1990	14.269594360479198
1991	12.893876895055445
1992	11.95334998723519
1993	11.412698981387932
1994	12.014643152979795
1995	12.69083278077855
1996	12.919678801243823
1997	13.165752451176155
1998	13.560251519634402
1999	12.142178244957002
2000	11.743033653171825
2001	11.825551430726783
2002	11.51276748067521
2003	11.9505686674697
2004	12.472196633990444
2005	13.215632503030214
2006	14.472977726752257
2007	15.641886218297637
2008	17.7416567769767
2009	15.883662044081657
2010	14.404118966495439
2011	14.390289293844921
2012	14.709113153434114
2013	15.382739185250891
2014	14.97864337378041
2015	14.518787455897684
2016	13.98480983564302
2017	13.356528807918231
2018	13.071641944447954
2019	12.832097126534144
2020	11.272520929710288
2021	10.768128520283415
2022	11.722381225450796
2023	12.514438334202154