Year	% of GDP
1960	20.455842036171386
1961	19.10514886079481
1962	19.170798795041538
1963	18.714245322455525
1964	18.376971667639257
1965	18.336190879981466
1966	18.507648552671437
1967	17.581887263459556
1968	18.05478735396023
1969	17.486327665617406
1970	20.513767993599977
1971	18.97520737234634
1972	18.031145216792464
1973	19.980151101321095
1974	23.793617766209152
1975	22.7615037475108
1976	22.498756150988623
1977	25.112644127120664
1978	25.078307441013997
1979	25.150216085185097
1980	26.775055487853905
1981	24.89829786143451
1982	27.7758400865204
1983	24.169801058424657
1984	23.912435584427293
1985	25.370288550715443
1986	26.65670774217511
1987	26.627455269307465
1988	28.586705103276895
1989	22.519904755315988
1990	22.237301089632886
1991	21.808443717766806
1992	22.874074232272015
1993	20.97793111129038
1994	21.393043478212512
1995	23.12505302575515
1996	23.848664494340966
1997	25.363549676905368
1998	26.16764410258268
1999	29.986782835092345
2000	31.709029226563267
2001	31.720953666991576
2002	34.641190583048214
2003	36.197704451966594
2004	38.04956828037854
2005	36.851861593913725
2006	37.21204609586888
2007	36.37943733392255
2008	37.31759818673453
2009	31.068677860690933
2010	32.411050582986775
2011	33.91868477605171
2012	34.72177093273272
2013	34.50101706608666
2014	34.29660743129571
2015	36.003254815952005
2016	35.1347032732867
2017	35.03546546624592
2018	39.56209527600151
2019	39.46667477117138
2020	40.9901580757936
2021	47.714349204734695
2022	49.672726443911024
2023	42.56253397920503