Year	% of GDP
1960	15.833309393054634
1961	15.52468007178496
1962	12.797945883113176
1963	14.76935983724956
1964	13.226814233905548
1965	12.654002058065553
1966	13.404594746821447
1967	12.90646916009875
1968	13.098484007004643
1969	14.06412733367572
1970	13.969308430454399
1971	12.042602296021723
1972	13.161591792484892
1973	15.387967150411832
1974	19.303798844388563
1975	26.571621389568868
1976	20.306896958338854
1977	22.021425368006405
1978	23.65739455198761
1979	25.548069158815778
1980	26.448746811601264
1981	26.216543463987158
1982	21.252089144500108
1983	21.397060727440902
1984	24.460839526027403
1985	24.332773284817055
1986	24.73353748012843
1987	25.8490938809904
1988	25.981066755163003
1989	29.272900948123677
1990	29.251113697934926
1991	26.793277077380463
1992	27.292258623245395
1993	27.728383887439158
1994	25.751788031502223
1995	26.34090126875015
1996	27.97030239214169
1997	28.221293907434745
1998	28.69259709955978
1999	26.386495946911175
2000	28.588169210653604
2001	30.2974557019342
2002	30.22663154818063
2003	30.632445060482993
2004	30.203610540669334
2005	31.886962227494593
2006	29.845960844308966
2007	31.84717281850622
2008	39.51406544923018
2009	29.570396167280666
2010	31.81368581792284
2011	34.79186253430704
2012	34.310552387572315
2013	33.055824363670006
2014	32.630725154845024
2015	30.158030987641833
2016	28.134702977383373
2017	27.69478213302828
2018	29.64800589346795
2019	29.73708681103172
2020	26.852473320113617
2021	32.86486375206978
2022	39.4726731414487
2023	29.8303574695752