Year	% of GDP
1960	12.919476682771158
1961	13.014127855474946
1962	14.60846071559845
1963	16.387195266645772
1964	17.948200664636495
1965	17.511246542225763
1966	18.54509672751442
1967	21.254263663954017
1968	21.723525198416795
1969	22.097757385244794
1970	23.741519754889822
1971	23.329204617571044
1972	22.71075855099345
1973	22.48401654298629
1974	23.29190493524133
1975	22.87504231445967
1976	22.90533871532035
1977	25.92862405979723
1978	25.245595456988884
1979	25.560744941181124
1980	27.772377475864975
1981	27.98965177380619
1982	26.94110612281497
1983	28.462663262150755
1984	28.601110704422545
1985	27.165072756321635
1986	25.780286670996343
1987	27.637926910234544
1988	30.679111242550643
1989	34.61921119073016
1990	40.38222316925186
1991	41.63158836897789
1992	39.25527194414243
1993	39.06462104549023
1994	39.999728930440845
1995	41.321277859946406
1996	41.65494618639573
1997	34.61143746377627
1998	22.151786867020324
1999	20.4100107185522
2000	21.57492770946503
2001	22.480369975608987
2002	21.911585214724543
2003	23.031901430088126
2004	24.86419158728392
2005	27.71262281481785
2006	26.846632234385844
2007	25.456251395805406
2008	26.44771585328377
2009	23.108954889944958
2010	23.992701800355196
2011	25.836369383454677
2012	26.993652842172693
2013	25.383537700429216
2014	24.661391000539368
2015	24.5284891453984
2016	23.713626354209637
2017	23.108364930635723
2018	22.786226368066682
2019	22.572951169784858
2020	23.21242865610504
2021	23.493213840273263
2022	23.36115488449055
2023	22.966687578569598