Year	% of GDP
1976	13.127450741923013
1977	15.30561031060358
1978	15.53536311884204
1979	14.095992519095235
1980	16.422234032240848
1981	17.469495384169967
1982	17.620499690648966
1983	18.86861578190959
1984	17.050660058706725
1985	14.59671743129403
1986	18.895094514271037
1987	20.39677652380136
1988	17.394045637871802
1989	17.232679131440996
1990	18.029749646120294
1991	21.363955172040168
1992	21.466480517326882
1993	16.126981437923497
1994	19.112776837281377
1995	17.112991243705775
1996	15.60699884525908
1997	16.040840753996676
1998	17.36726195597941
1999	16.70232587627396
2000	16.263070578526495
2001	17.043271611583915
2002	18.678025806599496
2003	18.57228771787474
2004	17.71133447969956
2005	15.50085496593822
2006	15.441855230959897
2007	14.07226270591907
2008	10.966289773973074
2009	13.33094103357831
2010	14.590404710657998
2011	15.126031065005263
2012	13.725717975883677
2013	14.247055690954447
2014	14.181250488570576
2015	14.944264787853367
2016	14.286149135706413
2017	12.897440497404721
2018	11.88258673191322
2019	11.37499417669152
2020	14.54158242210327
2021	13.81568700156574
2022	10.257407674448919
2023	12.95479015709618