Year	% of GDP
1960	3.858484824734902
1961	3.7652662380389743
1962	4.1569994312397265
1963	3.3284445236047437
1964	3.924822807666037
1965	5.506876393270959
1966	5.536651964137651
1967	5.746729540470861
1968	6.411292826035405
1969	7.045437952882987
1970	7.888791701409625
1971	6.901826017676886
1972	5.648502344878938
1973	5.334039441195525
1974	7.9602061986825134
1975	9.378089100272005
1976	9.046248554881837
1977	8.308127085382708
1978	8.221302767147169
1979	5.466351058892242
1980	5.1775377073531486
1981	6.771573406069221
1982	6.456515387261541
1983	6.5857933864498905
1984	6.240097443307644
1985	6.204532300077003
1986	5.663931748987497
1987	5.096918717585083
1988	4.852155279973456
1989	3.928497641617458
1991	3.96639866606679
1992	4.096270064632205
1993	3.4882015005403213
1994	3.8764764910315384
1995	3.3121306982358183
1996	3.134993692749169
1997	3.3192946749294054
1998	3.3596276923680426
1999	3.0991665160393915
2000	2.945884513179732
2001	3.219579395219191
2002	3.1839912726062924
2003	3.1751223214390536
2004	3.0450408409636927
2005	2.9577623491560714
2006	2.879534462137139
2007	2.6933174929844133
2008	2.7070078349181657
2009	3.1302043006901816
2010	2.933076027156081
2011	2.76061168910869
2012	2.831498861865017
2013	3.127749042385259
2014	3.437029159286314
2015	3.3892120901283285
2016	3.232748355168686
2017	3.277846112819256
2018	2.9054330910092223
2019	2.924748562510917
2020	2.930083620219806
2021	2.622588322961743
2022	2.4520275865553445