Year	% of GDP
1960	27.618211195697462
1961	15.890196209649204
1962	13.925519104631137
1963	15.977708465497567
1964	18.278527194604717
1965	18.700446279726894
1966	19.729840573511645
1967	16.65605861970534
1968	15.813864583907423
1969	18.72550810584243
1970	22.234103873034158
1971	23.035561635170474
1972	23.082857109256594
1973	22.55317100437694
1974	23.57104956492056
1975	25.851934139580813
1976	25.15696189972659
1977	24.740982197327217
1978	24.74722308699891
1979	24.476869541863078
1980	24.8006497326217
1981	24.356615381500397
1982	25.103067943368888
1983	26.352260615608277
1984	26.453837778394252
1985	27.290328364551925
1986	27.07375033978091
1987	25.63971142886945
1988	27.4754689535261
1989	26.305912560411016
1990	26.8801944603424
1991	28.29736713328874
1992	30.23213673001378
1993	33.696324065865305
1994	32.83091917731969
1995	32.37158034603829
1996	32.12012306898254
1997	30.72605108359014
1998	30.246413081126917
1999	28.810447465960703
2000	29.332862102989175
2001	30.334654775667936
2002	31.328219772919564
2003	33.66946960585197
2004	35.152360440596894
2005	35.498783298559154
2006	34.95789709002147
2007	34.623805940169795
2008	35.91590885592918
2009	40.179670222484525
2010	40.170443372463595
2011	40.33464777782353
2012	41.06475105417676
2013	41.41257972925497
2014	41.048021123384004
2015	39.84939685813853
2016	39.350278806588825
2017	39.62029794980952
2018	40.563470094325076
2019	40.433256862202654
2020	40.12368879630403
2021	39.9127323031276
2022	39.65889690456733