Year	% of GDP
1960	28.83764739428205
1961	32.645002667265125
1962	32.77612975319688
1963	33.197661309619455
1964	32.60689521871003
1965	31.878585021620864
1966	31.121835126810744
1967	31.950820081491553
1968	31.345838975988606
1969	29.841431991601407
1970	28.452347585864228
1971	27.452993047309864
1972	26.478981980913595
1973	26.492408074528207
1974	24.631046355690234
1975	23.791609156578943
1976	21.691768855316685
1977	21.277697824540667
1978	20.710372113728063
1979	20.078044778971567
1980	17.97624336196599
1981	16.862724984689184
1982	17.241590129365157
1983	17.64891285649025
1984	17.682122978379414
1985	17.433239273394804
1986	17.682359774469717
1987	17.450239942724878
1988	17.595549702507498
1989	17.215034669313177
1990	16.280364744716408
1991	15.844377726176898
1992	14.86983953513477
1993	13.49087795533564
1994	13.6945108262103
1995	13.50634361118655
1996	13.621106866590738
1997	12.987310710084296
1998	12.89962260507247
1999	12.162356056310761
2000	11.177210641825036
2001	11.125125282354196
2002	11.524386684445528
2003	11.375217862506663
2004	10.991523114714251
2005	10.195637845871733
2006	9.674863295227972
2007	9.640415266002785
2008	9.645461564289263
2009	9.803931351310254
2010	9.600558290985788
2011	9.4391596644294
2012	9.31018795203484
2013	9.333416095399118
2014	9.255543735141746
2015	9.292378573951183
2016	9.278863987849318
2017	8.875469600442816
2018	8.527589951948936
2019	8.695647014620665
2020	9.544462081664316
2021	9.113989335016523
2022	8.996227303186261
2023	8.766954253135776