Year	% of GDP
1960	12.836446478069044
1961	15.072309846829762
1962	14.70616874877036
1963	15.008526054446381
1964	12.703560902546263
1965	13.186115936544596
1966	17.18011741615554
1967	16.577920764626878
1968	17.508766919505376
1969	18.417313535833003
1970	21.21255680209953
1971	21.993813049685375
1972	24.338200814539544
1973	24.86046821981934
1974	23.251955072495292
1975	24.061413931837095
1976	25.731476995146256
1977	17.818755758899467
1978	20.447810682167987
1979	19.53044195686193
1980	20.509015609243903
1981	22.843018320141336
1982	22.764797869945514
1983	17.242849253798592
1984	13.496510674545995
1985	13.782056764783205
1986	15.195863411908459
1987	17.208052070156395
1988	7.844531445961578
1989	5.811191264336603
1990	7.626958608895569
1991	13.345373932698399
1992	16.502702939221265
1993	20.691749834849315
1994	21.106652780782078
1995	23.233448756162865
1996	24.797628163291524
1997	24.66782453267783
1998	27.482778607039787
1999	27.462300412847146
2000	26.072397730352815
2001	18.700440682618368
2002	16.69436032557757
2003	21.00354424321833
2004	20.404927159082355
2005	20.700753387885705
2006	22.51684124517272
2007	27.867225784286596
2008	31.55006816177426
2009	28.971883222858224
2010	29.61350146592997
2011	31.13858662327799
2012	35.47045859850556
2013	39.28868265061985
2014	40.63247424952024
2015	39.4327790903612
2016	38.35085834871701
2017	39.335648131029686
2018	38.726404728452465
2019	36.94544540307289
2020	23.563358566223698
2021	27.36539511311511
2022	29.514042796073213