Year	% of GDP
1960	22.470426409903713
1961	22.19469926077192
1962	24.312034547522455
1963	21.19157577544135
1964	23.120034740848595
1965	24.017188582503277
1966	25.010873775626084
1967	23.927977527264353
1968	27.25592473609682
1969	28.591362678518173
1970	27.619976684412805
1971	28.854567571650858
1972	33.180678701818735
1973	33.5029155089422
1974	25.72173301089463
1975	25.61169920481618
1976	26.18838154692321
1977	29.78432491163236
1978	33.16236855471794
1979	35.41255078366412
1980	30.657689245112557
1981	27.966483628935862
1982	25.31471371752187
1983	27.12721417497904
1984	21.940420108902575
1985	23.568090276074074
1986	24.504215906428193
1987	23.178515103810394
1988	23.09856155919965
1989	24.185376399416878
1990	24.785702063833902
1991	24.200924892758614
1992	22.84725646802279
1993	21.733971607940173
1994	20.001106233024444
1995	19.957068929666715
1996	20.791804135156074
1997	20.193780634550723
1998	23.71572752699901
1999	24.501632902885515
2000	24.641216443706853
2001	24.736793220235366
2002	23.60249704938367
2003	25.324757030275464
2004	24.395020512108502
2005	20.828951232005377
2006	23.685874692685584
2007	26.01185064923275
2008	23.813732437887307
2009	20.79147969024298
2010	16.559265867207547
2011	13.676151054553042
2012	11.529630359672424
2013	11.196880462883993
2014	10.834285134074586
2015	10.770039947470773
2016	11.008139320363334
2017	11.789133874550462
2018	11.14774842597094
2019	10.687431660477488
2020	12.083656310097107
2021	13.31395059998031
2022	13.694915807778393
2023	13.882734513630684