Year	% of GDP
1960	11.093721784144947
1961	11.317855923523387
1962	11.968742972790645
1963	11.678452579034941
1964	11.368876758740765
1965	11.887207347044367
1966	12.80452793044049
1967	12.7736286376513
1968	13.601971994933068
1969	13.05223948951241
1970	13.168947297114212
1971	13.903200237788566
1972	14.409500078568701
1973	14.608590927338419
1974	14.446174745700938
1975	16.791804083923935
1976	17.87685367375342
1977	17.456836065403365
1978	17.833006529726436
1979	17.36238010627279
1980	17.214661397200846
1981	17.810026385224276
1982	17.739413273284544
1983	18.65246130129031
1984	18.317063354641856
1985	19.24711777320113
1986	19.42560768514224
1987	19.36735427950816
1988	18.459078417115464
1989	17.783721403842236
1990	17.641927871607013
1991	18.632334989080736
1992	19.496492790670754
1993	19.37639148081698
1994	18.81310127708091
1995	18.641271685160312
1996	18.584642956392532
1997	18.270593624531813
1998	18.26233792682099
1999	18.730731561400884
2000	18.53807452835029
2001	18.542639121744074
2002	18.348434653630267
2003	18.410724335954814
2004	18.30228136222079
2005	18.381594956788216
2006	18.30729752847432
2007	18.172251642068165
2008	18.09390918670192
2009	18.430747058324567
2010	18.834680971280633
2011	18.664350851618895
2012	18.896866579782685
2013	18.85160119548992
2014	18.773516201525915
2015	19.182167162235274
2016	19.961288440301495
2017	19.928747546007735
2018	19.989883590815648
2019	20.34289517866795
2020	21.86231166210991
2021	22.386795736131106
2022	22.019217210885724
2023	21.3257859120703