Year	% of GDP
1970	16.582200971249986
1971	16.283575976883245
1972	16.179632696314304
1973	16.34794912516145
1974	18.715934749020438
1975	18.79620544802222
1976	20.298431512640985
1977	20.124003319638735
1978	19.543849458604527
1979	21.399950126440448
1980	23.232846828604302
1981	24.048287452538013
1982	23.517855226551767
1983	23.28416628786809
1984	24.51708732903509
1985	24.976346428713867
1986	21.657491144599796
1987	21.006437288791783
1988	21.43643521916866
1989	22.916298157480206
1990	23.02775101808337
1991	24.15247824441922
1992	22.6961446717507
1993	20.263294667283496
1994	20.94717280205515
1995	21.587397934139478
1996	22.145593271502776
1997	24.282385335134997
1998	25.17806614310819
1999	26.40661720434284
2000	30.67834943032303
2001	30.218131772027213
2002	28.34231070187251
2003	29.03760676804261
2004	30.512835245655285
2005	32.859140588469224
2006	36.01682123870059
2007	36.55165929867376
2008	37.72561447325534
2009	33.10880595977479
2010	37.3031508345032
2011	40.14898498641203
2012	40.206934735967884
2013	39.66019883685774
2014	39.000830079626155
2015	39.32548625660073
2016	38.69638311311305
2017	40.07416226937156
2018	41.211011900340225
2019	41.19080858119058
2020	37.67037926039962
2021	41.881574036959734
2022	48.956410038149926
2023	42.973289073950056