Year	% of GDP
1960	13.384903346464725
1961	12.032464966124792
1962	11.891527862889198
1963	11.478294239277778
1964	11.135420292508664
1965	10.198924965950287
1966	14.282684650134373
1967	11.611768536798884
1968	9.359346168467843
1969	8.546861842772875
1970	8.230668531278445
1971	7.871725780449331
1972	9.692504279435266
1973	10.279549725579848
1974	12.200851485107663
1975	12.870842742525456
1976	13.344965507457122
1977	13.300247241307133
1978	14.027770480905204
1979	15.501513058068182
1980	16.39227788745905
1981	15.797871414397703
1982	15.048157737621091
1983	13.987892845698793
1984	15.09636222768265
1985	13.97784253947716
1986	13.090548241984614
1987	13.318468353607285
1988	14.150942895892085
1989	15.432423818943997
1990	16.218130845837766
1991	17.95666567611636
1992	19.146724426797558
1993	19.9593853520382
1994	19.921750877519315
1995	22.268112433856523
1996	22.168963791503284
1997	22.30825174900867
1998	21.61642190161745
1999	21.586430436447486
2000	22.425059647465662
2001	21.711706221066002
2002	22.694605671252326
2003	23.57809079282006
2004	26.384003077677523
2005	30.656569783426942
2006	32.802142950384365
2007	31.902750287015895
2008	41.7401850876261
2009	31.52113022564086
2010	34.53993338873508
2011	41.194225716535904
2012	41.36418797016449
2013	40.35570485244761
2014	37.50602993310698
2015	31.155037021395668
2016	27.340779595246172
2017	28.325139441392693
2018	30.654428548621237
2019	28.435247470087138
2020	24.380491446061505
2021	30.77858050690052
2022	34.14135282975292
2023	30.369043446180964