Year	% of GDP
1960	11.132325796993795
1961	6.7240159227753145
1962	8.348568692290879
1963	9.814948986279846
1964	10.817565659777209
1965	11.890080428954423
1966	9.686727809837867
1967	10.98209652309289
1968	11.017818785865298
1969	13.739920991395637
1970	14.543229608910643
1971	15.172037634652972
1972	14.630541871921181
1973	15.593696364487439
1974	19.823196183661302
1975	14.514844415149266
1976	10.383416753234489
1977	12.084162295773798
1978	11.736773398121624
1979	11.638218654803927
1980	21.68328669954375
1981	19.625250073743754
1982	21.297724273761318
1983	19.243862985541963
1984	22.01854416926411
1985	22.38932209855589
1986	20.966267504959283
1987	20.421999209728124
1988	24.299289917761733
1989	25.029670819330928
1990	25.552248169936163
1991	22.180401086845073
1992	21.791361645156364
1993	20.927241906484557
1994	20.23092214448507
1995	19.02535672758431
1996	21.047847080675332
1997	21.619744853095497
1998	31.501809852428725
1999	29.952261826840886
2000	28.43116359281649
2001	32.134028156064645
2002	32.274172842830296
2003	33.35136512571604
2004	32.858871075138815
2005	31.369310711458475
2006	32.08319001923285
2007	31.40366329503066
2008	31.77193774405074
2009	29.412023007697506
2010	29.10913842374192
2011	27.941580757675354
2012	26.26048694511812
2013	26.354918216894813
2014	19.14666075526185
2015	22.880220087021932
2016	22.304521183021414
2017	22.69763555416291
2018	22.54155452014956
2019	22.78293258140593
2020	21.521383940850882
2021	21.26690656116957
2022	18.807464977844738
2023	19.68827776737931