Year	% of GDP
1960	13.553347018267727
1961	14.001264775840921
1962	14.525969977355164
1963	14.61117480656091
1964	14.006988792898184
1965	14.070320427261986
1966	13.426788098231226
1967	12.35975376478998
1968	12.73398569945669
1969	13.294679290580413
1970	13.503284087704346
1971	14.048127864570539
1972	14.233341783195055
1973	14.461877597628083
1974	15.530190764150426
1975	14.419994740514863
1976	15.414566511075048
1977	15.602446019268998
1978	16.115418633583335
1979	16.7150460074121
1980	16.236954861601248
1981	16.04758093393084
1982	15.728586595672123
1983	16.102469141714863
1984	16.20125827607051
1985	15.910982106657201
1986	15.807994006226595
1987	15.79917275590198
1988	15.676991911090987
1989	16.222334154497528
1990	16.081789411313792
1991	15.375631373757145
1992	15.54063966336432
1993	15.692338076993959
1994	16.429873070430727
1995	17.128177095693022
1996	16.77900976097104
1997	15.982557566617148
1998	15.455136418091298
1999	14.979061984039907
2000	14.64228839230042
2001	14.293454739615264
2002	14.608626862533407
2003	14.642555022176001
2004	14.966230953978929
2005	15.326401950945629
2006	16.50419496883187
2007	16.24149749162174
2008	16.461254194918176
2009	16.48481253914875
2010	16.497426905369768
2011	15.784272364016347
2012	15.573117176534032
2013	15.06513178835818
2014	14.927709928104454
2015	15.180800132951738
2016	15.05680028904624
2017	14.90734935399466
2018	14.93166482479186
2019	14.054383534486798
2020	14.485081874214295
2021	14.81793737383908
2022	14.10126495575727
2023	13.814888728803904