Year	% of GDP
1960	14.951637283235103
1961	14.919947030477749
1962	15.769546004569504
1963	16.268994887505478
1964	16.177977223246266
1965	16.702918024929566
1966	17.77294094083529
1967	18.367248841328216
1968	19.337581686497717
1969	19.53221135309059
1970	20.237081955289803
1971	21.21011403096955
1972	21.43323724882948
1973	21.39638815183255
1974	21.893116375703173
1975	22.452219649634763
1976	23.461996037078762
1977	25.927731644059822
1978	26.339762029364618
1979	26.682717599502485
1980	27.209836150198797
1981	27.517494247752776
1982	27.362394758443394
1983	26.743837458672303
1984	25.840204570609032
1985	25.532643016105677
1986	25.23066577398867
1987	24.49978289433011
1988	23.847868686883597
1989	24.11668453962536
1990	25.16218204010246
1991	25.986623125384128
1992	27.05227317110553
1993	27.37651440330956
1994	26.390613974580457
1995	25.481638349189968
1996	25.835780813459593
1997	25.311720150112173
1998	25.373576632503525
1999	25.39551882230644
2000	24.531891895483298
2001	24.737162259044602
2002	25.451596714204783
2003	25.712701554363132
2004	25.02132362657825
2005	24.896650898899214
2006	24.62926871147092
2007	24.146562426399235
2008	24.637534203940913
2009	25.99902968034821
2010	25.032369491554828
2011	24.93719662920595
2012	25.75016977969515
2013	26.196578256407626
2014	26.08433327572864
2015	25.718195410365524
2016	26.365386788903635
2017	26.022411652606415
2018	26.059388116660376
2019	25.75323009518144
2020	26.43870106765097
2021	25.650672060698167
2022	24.873002005676582
2023	25.6837137983175