Year	% of GDP
1970	40.50728971989291
1971	40.785068875654915
1972	39.91430129157573
1973	39.336752035157666
1974	39.236029680932134
1975	28.851506776559464
1976	26.038698307220947
1977	26.04374641096287
1978	27.26044885875617
1979	29.97228155215273
1980	34.15062271528721
1981	31.439354538598856
1982	31.08469661963053
1983	31.50470129155099
1984	29.0639454078162
1985	29.858468450572012
1986	31.906200137582136
1987	31.50387523580974
1988	32.5498816351321
1989	33.31682432301541
1990	34.91963408750046
1991	31.71298370177636
1992	28.964603510998572
1993	27.582050850576884
1994	28.31869532182974
1995	28.063696420852676
1996	27.60826076561294
1997	26.09019169430642
1998	27.4131052425492
1999	27.080271949372523
2000	27.234191086865884
2001	27.695136995311014
2002	26.21494021838166
2003	25.984418186172775
2004	24.548464470039043
2005	27.18921899555344
2006	27.918934063812635
2007	26.788814598459876
2008	27.412026215119866
2009	28.341989494365667
2010	25.895559196580642
2011	28.49241873482545
2012	26.660229003760016
2013	25.154933955202686
2014	25.553196042031136
2015	25.074863281770266
2016	25.561928395453997
2017	26.044314341962554
2018	25.73445323203119
2019	26.437792904374508
2020	29.57874983883429
2021	26.10462737926772
2022	24.537379263743478
2023	24.576494690291334