Year	% of GDP
1960	3.8584848247349024
1961	3.7652662380389743
1962	4.1569994312397265
1963	3.3284445236047433
1964	3.924822807666037
1965	5.50687639327096
1966	5.53665196413765
1967	5.746729540470862
1968	6.411292826035406
1969	7.045437952882987
1970	7.888791701409625
1971	6.901826017676885
1972	5.648502344878937
1973	5.334039441195524
1974	7.960206198682513
1975	9.378089100272005
1976	9.046248554881837
1977	8.30812708538271
1978	8.221302767147169
1979	5.466351058892242
1980	5.177537707353148
1981	6.77157340606922
1982	6.456515387261541
1983	6.5857933864498905
1984	6.240097443307644
1985	6.204532300077003
1986	5.663931748987497
1987	5.096918717585083
1988	4.852155279973456
1989	3.9284976416174584
1991	3.96639866606679
1992	4.096270064632205
1993	3.4882015005403213
1994	3.876476491031539
1995	3.312130698235818
1996	3.1349936927491697
1997	3.3192946749294054
1998	3.3596276923680417
1999	3.0991665160393915
2000	2.945884513179733
2001	3.2195793952191916
2002	3.1839912726062916
2003	3.1751223214390527
2004	3.045040840963693
2005	2.95776234915607
2006	2.8795344621371393
2007	2.6933174929844124
2008	2.707007834918166
2009	3.130204300690182
2010	2.9330760271560816
2011	2.7606116891086896
2012	2.8314988618650174
2013	3.1277490423852603
2014	3.4370291592863134
2015	3.389212090128328
2016	3.232748355168686
2017	3.277846112819256
2018	2.905433091009223
2019	2.924748562510918
2020	2.930083620219806
2021	2.622588322961743
2022	2.4520275865553445