Year	% of GDP
1965	9.523809516648765
1966	9.660449435912282
1967	9.769865597837335
1968	9.266408955143792
1969	9.821744258691913
1970	10.24513262379813
1971	10.33470953907472
1972	10.381331527679293
1973	10.240679138554288
1974	9.820913062044266
1975	10.289074336585083
1976	10.541519442077789
1977	8.956829335347518
1978	8.239871973078541
1979	8.093082172490968
1980	8.800170453555346
1981	9.669339242624652
1982	11.369390150825055
1983	11.11153541848917
1984	11.220657306516197
1985	11.004445301679343
1986	11.982094532062721
1987	12.76192676996967
1988	13.175843031947204
1989	14.05006975791305
1990	14.176211033061195
1991	14.16681617320592
1992	13.929834616787629
1993	16.910586841553744
1994	16.951580936174338
1995	16.66916550186771
1996	16.013169812763607
1997	15.738512469156223
1998	15.364097859500333
1999	15.432749572712682
2000	14.74026933841683
2001	14.529446794821151
2002	15.53069502380317
2003	15.58054708625479
2004	15.410790288914002
2005	15.026144152071986
2006	15.114577149511677
2007	15.209967652755873
2008	14.305694768409413
2009	14.879299186747902
2010	14.519973789842917
2011	15.189086207964339
2012	15.53277006459204
2013	15.228735747458574
2014	14.514021233113485
2015	14.350058185326752
2016	13.841534369275726
2017	13.712945529681148
2018	13.68501543169495
2019	12.825780206234286
2020	13.180987610332433
2021	13.302038838188961
2022	13.010728155997791
2023	13.261801577845416