Year	% of GDP
1966	17.918647388353428
1967	18.63967708845074
1968	19.4821093323602
1969	19.767457580680347
1970	20.9620557011212
1971	22.367329496792657
1972	22.43297685412026
1973	21.960367526786246
1974	23.6472382596735
1975	24.596324990417138
1976	24.094566540119104
1977	23.80126807678245
1978	24.462998427913814
1979	24.91075807492328
1980	26.26755810538251
1981	27.27263792706582
1982	27.690954340985023
1983	26.982526592895233
1984	25.130568330126124
1985	24.589925339441514
1986	23.531562228279952
1987	24.29851066239037
1988	24.701018868967616
1989	24.360497233279517
1990	23.906614103195977
1991	24.248126992142286
1992	24.163038482977502
1993	25.301053901884625
1994	24.404185460384557
1995	24.052072587081934
1996	24.105404609633286
1997	23.63921686014875
1998	24.12912252490932
1999	24.365990800474314
2000	23.873764606384782
2001	24.324911738581143
2002	24.869054194928164
2003	25.038024258117225
2004	24.933900599433812
2005	24.498688911882393
2006	24.203538388755337
2007	24.33796324339598
2008	25.100890055831254
2009	27.93499972291782
2010	27.365847979969
2011	26.56466595655408
2012	26.471455532105136
2013	26.007487634327102
2014	25.785652044161324
2015	25.469199428443222
2016	24.86850637186386
2017	24.41208314386758
2018	24.275351417838195
2019	24.12812697830159
2020	24.740391222502485
2021	24.003675243767773
2022	21.777437112840083
2023	22.642442410036185