Year	% of GDP
1965	21.295475051746717
1966	19.63433593058471
1967	19.18168135507411
1968	17.339217292426344
1969	17.32127666809773
1970	20.65622824536317
1971	20.976595668324116
1972	20.210254771798702
1973	21.802897281082696
1974	19.431663639545075
1975	22.037148356083403
1976	22.190304469232817
1977	25.831600839279577
1978	29.661205581149947
1979	27.101650520259017
1980	24.35462173909414
1981	24.36938257747976
1982	21.664119743566527
1983	17.722005528277993
1984	12.965379058967308
1985	11.771085518536951
1986	11.817475500684328
1987	11.769698483608565
1988	11.484852896804224
1989	10.317522611358847
1990	8.502141866807683
1991	8.574199908953336
1992	8.50242173008084
1993	9.345464496955584
1994	11.54921230495029
1995	13.686123144887633
1996	19.193505253013285
1997	18.02766179840837
1998	18.205786773297124
1999	19.26633436382148
2000	16.362068052096586
2001	15.340768245569746
2002	15.458863948372578
2003	12.84385079987146
2004	13.493331357445898
2005	13.737473755332372
2006	14.243639203827438
2007	16.697147142380615
2008	16.11778346237115
2009	16.10816077555059
2010	20.703173969078726
2011	17.847059231224794
2012	17.11227153726627
2013	20.731202224342947
2014	22.47607017436299
2015	23.561668495446437
2016	23.29650129636681
2017	21.91091875096153
2018	22.46655035825119
2019	22.17664810961462
2020	20.344763141246954
2021	21.05717960369421
2022	25.192370110679562
2023	25.47279910591348