Year	% of GDP
1960	8.993987079683395
1961	9.460290175717923
1962	9.99549734714615
1963	10.031874544500637
1964	10.617249993473287
1965	11.104639319706845
1966	11.14083965917902
1967	11.580583117089681
1968	12.44110136316084
1969	12.287211712488972
1970	11.942775129263197
1971	13.568949233114887
1972	12.81819635921143
1973	12.393062281753764
1974	11.814494444268393
1975	13.083961781855919
1976	12.549553698698821
1977	13.003582070302134
1978	14.072328735253917
1979	14.350578062111428
1980	14.533821872318658
1981	10.562243684914229
1982	11.074617959414121
1983	12.576514097990193
1984	13.831453825522203
1985	12.800795207834506
1986	16.83192637141932
1987	18.66728410780053
1988	18.2946667387002
1989	18.097048581882895
1990	18.503751786817006
1991	18.55427230447799
1992	20.64409784193578
1993	20.019647892298178
1994	18.71288399622785
1995	15.413899724238666
1996	14.229728939354805
1997	13.982431359123154
1998	13.345674340097613
1999	18.339431524915355
2000	17.14247566182626
2001	17.018023396765393
2002	15.79669388217411
2003	17.31846891406991
2004	17.111150453446022
2005	15.949625614128768
2006	14.81167052194086
2007	14.905046683022526
2008	14.551333944755038
2009	15.901854958719847
2010	15.6496208813904
2011	16.297609487887936
2012	15.915130969181934
2013	15.662656987697174
2014	14.912189950199863
2015	14.804870605747544
2016	15.306527694337893
2017	15.94910703350182
2018	15.267172987022438
2019	14.710808841860173
2020	15.447794511934381
2021	15.490142142192841
2022	15.144747236155155
2023	15.69382526945708