Year	% of GDP
1960	32.18653896487318
1961	35.21184400487588
1962	35.88546585976239
1963	44.08357341295686
1964	30.180428876731174
1965	26.306306306306304
1966	25.1655670803919
1967	24.101811377245507
1968	18.381339264378802
1969	18.621550599589746
1970	18.54749306201272
1971	13.79638439581351
1972	13.087557603686637
1973	11.607697082557419
1974	8.205542103847188
1975	6.401386245674741
1976	5.006257822277847
1977	5.46218487394958
1978	6.509643916913947
1979	7.446478436239529
1980	6.757355673523557
1981	6.1171986660314435
1982	6.1233080999243
1983	6.500037143078233
1984	6.104613802853104
1985	6.7510829723425525
1986	9.244930856027828
1987	10.992598595258746
1988	10.076175454777141
1989	8.68588543616623
1990	7.324447735406639
1991	7.623666432445589
1992	8.251388269628308
1993	8.484230879778423
1994	9.086015127508196
1995	8.031674208144796
1996	7.092831639659434
1997	7.217522755781417
1998	7.0207939508506625
1999	7.2936259143155695
2000	6.213624521922288
2001	6.143932582192906
2002	5.74386163895503
2003	6.004020935132233
2004	5.4672910425104675
2005	4.98463861102881
2006	4.911200314638279
2007	4.957830802879572
2008	4.229842031948407
2009	5.044169792731008
2010	3.9144544172835736
2011	3.432289779771583
2012	3.3536977767633367
2013	3.329080650746569
2014	3.621204769962435
2015	4.311629044101457
2016	4.973136909870677
2017	5.265764844076496
2018	5.435952803058217
2019	5.5544308701412985
2020	6.628146847272386
2021	6.016489336998422
2022	5.642207698606767
2023	5.816178760972206