Year	% of GDP
1960	32.7264142489078
1961	24.716851068169067
1962	28.792409257003655
1963	30.05942318157083
1964	29.567973856209147
1965	25.60196918717903
1966	23.624055818717192
1967	24.006931862938163
1968	10.25864320033424
1969	12.03484969406757
1970	12.206420807941194
1971	10.313244472445904
1972	24.715835970222965
1973	34.26058051324601
1974	38.19447912646705
1975	29.08124443485065
1976	26.55664140406861
1977	25.115594198253067
1978	30.83959985028412
1979	35.350793935818174
1980	33.68500164404153
1981	30.298278911271193
1982	25.58747404822942
1983	29.29747768169556
1984	27.00002286792345
1985	27.709173008130772
1986	27.455345828830858
1987	29.965642407843777
1988	28.88278606847313
1989	29.503792894530008
1990	32.40405552706196
1991	32.80414149029983
1992	34.153855052852734
1993	31.24493380062595
1994	31.082274225174928
1995	32.08156376177568
1996	33.87862030598447
1997	32.53550082011702
1998	28.624280691769215
1999	29.58529279813802
2000	19.995013842528074
2001	19.999872669521594
2002	21.59445136482889
2003	22.219075184201937
2004	23.694551753337567
2005	28.516224632832344
2006	28.88404263282402
2007	27.385555417814384
2008	30.984588781754606
2009	26.257917109604072
2010	30.103763833820096
2011	30.094986308870986
2012	27.457052104359015
2013	26.973148807360896
2014	26.648319193198887
2015	22.08834741639056
2016	21.433536323707266
2017	23.38257836284375
2018	23.447457350147907
2019	22.953825377613676
2020	22.573308594126733
2021	28.924873672172502
2022	27.13054077383808
2023	23.343783605890735