Year	% of GDP
1960	25.588094095055208
1961	25.341426403641883
1962	25.46362339514979
1963	24.841996646459435
1964	23.805620608899297
1965	22.292447777182645
1966	21.978130233474534
1967	21.39633660737988
1968	21.95879659908437
1969	20.04362050163577
1970	18.401953021905516
1971	18.478260869565215
1972	21.45813435211716
1973	21.686955768314345
1974	24.154606549799094
1975	23.84494169555626
1976	23.91359025235447
1977	26.283742642581693
1978	28.4249933149122
1979	31.243406179351922
1980	31.87098812412941
1981	25.203391282007363
1982	23.38758094257901
1983	21.76785064517032
1984	22.49874208311037
1985	27.902881128227257
1986	27.247670297939365
1987	26.891376240142456
1988	25.802494204443544
1989	23.706840275939943
1990	21.538541733741763
1991	19.340815342583166
1992	18.9551466044412
1993	19.914366630952962
1994	19.549337805111016
1995	20.037860607775354
1996	21.774743218972407
1997	21.66059185520418
1998	22.51927181754163
1999	22.269215974660213
2000	24.404303310691862
2001	26.35666063456878
2002	28.431167217680215
2003	23.915273361403433
2004	22.757518785665376
2005	23.599764491543613
2006	26.098249881711972
2007	27.95896439470196
2008	32.254673671067735
2009	24.982746488323667
2010	25.783417626722148
2011	27.698148470375223
2012	27.13914919376788
2013	28.379280320360955
2014	29.00061930334713
2015	27.7136384124829
2016	28.156088169895494
2017	27.3400757812216
2018	27.497037150842335
2019	27.202129405115098
2020	27.52735129442544
2021	31.11131984685787
2022	33.53844579098332
2023	33.02311838458366