Year	% of GDP
1960	10.372690361842714
1961	10.244948173974775
1962	9.572909187662438
1963	9.931510382510846
1964	9.781798676144954
1965	9.513612376592876
1966	9.759349286700228
1967	9.819743362551716
1968	9.771716330245617
1969	9.364795108304588
1970	9.94158160084262
1971	10.261975287757489
1972	10.100545505829595
1973	11.221120196952155
1974	14.146386889909246
1975	15.383175596794441
1976	14.86743906460514
1977	15.276818533039293
1978	15.639426233302881
1979	15.790261792085625
1980	17.860422375026555
1981	17.53464560761978
1982	16.86357611977323
1983	16.242983250114012
1984	15.676892188206088
1985	15.424013729344024
1986	14.771935572825633
1987	15.35250133300519
1988	17.344331575253445
1989	18.37268676130126
1990	18.198735590295577
1991	19.172278540188696
1992	20.190638616697797
1993	20.70815492040448
1994	20.829644742661134
1995	21.602708232411093
1996	21.244196625328314
1997	21.557857871346982
1998	20.53378080124894
1999	21.882285359651693
2000	23.803610891507983
2001	23.68017438066458
2002	24.665730542327296
2003	26.149446702665298
2004	28.58332056184948
2005	28.61073366725539
2006	28.55293966946244
2007	28.19600741686222
2008	28.97779000898631
2009	24.725005506627546
2010	25.876228327606405
2011	26.94939127065265
2012	26.751798633623764
2013	26.136892015865442
2014	25.30576315218031
2015	23.229455852295157
2016	22.256045896842796
2017	23.061848832722763
2018	24.266197305268285
2019	23.143919587246987
2020	21.254310540983177
2021	23.491425126171965
2022	25.225809694576025
2023	24.010527407774994