Year	% of GDP
1965	28.733763612270064
1966	28.51248292226936
1967	27.413181974544205
1968	27.927370381868982
1969	27.295238853634068
1970	27.316339285714285
1971	27.69970274083031
1972	28.28805025460429
1973	27.892506309648674
1974	27.897906939677586
1975	28.04862722510217
1976	27.29467494583763
1977	26.305160977824617
1978	25.843563211426773
1979	25.381506232970004
1980	24.84471930648457
1981	24.98561167636555
1982	25.12429592030386
1983	25.3419060622362
1984	25.62627111271097
1985	25.851498902955296
1986	25.610503058400663
1987	25.978769713257744
1988	25.848626697939935
1989	25.634800044204255
1990	25.879159820107112
1991	25.73998175721803
1992	25.285048035702456
1993	24.86610041654549
1994	24.487266396336853
1995	24.15072353737363
1996	24.056099937754926
1997	23.72674187595231
1998	23.439898833223324
1999	23.046359823122657
2000	22.821147934217947
2001	14.172146839788555
2002	14.170286852765738
2003	13.469127896393681
2004	13.073543299618448
2005	12.58996769360019
2006	11.449068285382136
2007	11.637607927039133
2008	11.333664890346347
2009	11.848607897806328
2010	11.234151690189723
2011	11.258742752003558
2012	10.72274975333672
2013	10.356221102386833
2014	10.074483498933432
2015	9.96700303156264
2016	9.661395472750437
2017	9.696286631967542
2018	9.435507565445999
2019	9.408725550642727
2020	9.926991861814678
2021	9.298996816667863
2022	9.306532548812564
2023	9.249450904707903