Year	% of GDP
1960	29.41434253329919
1961	33.16097251984897
1962	33.26557250628792
1963	33.65047680809014
1964	33.04273476432758
1965	32.33860147818659
1966	31.544168818786776
1967	32.32883446376374
1968	31.678354751388564
1969	30.174937648827477
1970	28.847447094919797
1971	27.885157608846374
1972	26.96508164710763
1973	26.949636123061538
1974	25.134536541184673
1975	24.344528686430262
1976	22.31070884518626
1977	21.935370966462308
1978	21.356053794827222
1979	20.618618446320692
1980	18.47918980982616
1981	17.369458140160134
1982	17.744317263800756
1983	18.153660959597346
1984	18.144685964220105
1985	17.95575630123308
1986	18.247701309973753
1987	18.08996460757563
1988	18.314073438839618
1989	17.91360161902247
1990	17.047506645190825
1991	16.820488120818258
1992	15.484114412554536
1993	14.066079304285669
1994	14.19273558955815
1995	13.938564186375505
1996	13.98409825749839
1997	13.37251480957033
1998	13.290606338117191
1999	12.527560507240704
2000	11.550733407356846
2001	11.47766045781425
2002	11.888172843705233
2003	11.726690237313722
2004	11.31042651351376
2005	10.532883411214023
2006	10.016605192364462
2007	9.991597237921985
2008	10.008513521420529
2009	10.198578255370402
2010	9.92064287984418
2011	9.715963496746797
2012	9.600431824464694
2013	9.596650103126658
2014	9.531776692627576
2015	9.57432828758475
2016	9.538454879294541
2017	9.13885444225114
2018	8.77958651713746
2019	8.959593235558422
2020	9.817036683745906
2021	9.346932241357617
2022	9.236466492701078
2023	9.029573260926368