Year	% of GDP
1960	12.559695590400178
1961	12.916216908374253
1962	12.096409490138516
1963	12.736847444245312
1964	11.85196851662502
1965	10.545684715161283
1966	10.669065816733928
1967	11.354384350846678
1968	11.114993758077116
1969	10.898282867488208
1970	11.324635417885458
1971	11.098115234509185
1972	10.772091328088155
1973	9.906429753117584
1974	9.329838753736643
1975	10.185180025958491
1976	10.487094545175728
1977	9.426307445356128
1978	9.680528521374335
1979	9.900438590639464
1980	9.106317447498599
1981	9.518741600609735
1982	10.388101619429259
1983	10.355948195244604
1984	9.194649875480476
1985	10.43389007259152
1986	11.159204613169528
1987	12.637457927270432
1988	13.492952690047396
1989	15.499137314745756
1990	19.290920091542098
1991	17.899844076568357
1992	17.063015594762096
1993	17.66402303813358
1994	17.865716512922212
1995	20.927924858745147
1996	19.750826516177753
1997	19.535294798205516
1998	20.070531584889718
1999	19.782690769704
2000	18.76784574441305
2001	19.343295014046376
2002	19.8096623456372
2003	19.077478493371476
2004	18.46758391971432
2005	18.890001419329217
2006	19.03891694085025
2007	18.94298761489379
2008	18.83939287256911
2009	19.650638401219762
2010	19.016857835627597
2011	18.66925693643745
2012	18.53010326371408
2013	18.892478993716544
2014	19.153538710212732
2015	19.776819955412027
2016	20.37929742868773
2017	20.161904696681894
2018	19.895087783070046
2019	19.9835812858102
2020	20.13515301664464
2021	18.547588359127055
2022	18.402212720053416
2023	18.21881349625139