Year	current US$
1970	12051437373.723991
1971	15985767514.034134
1972	21935303973.130676
1973	36502986245.689575
1974	98703671662.57628
1975	86776444484.06085
1976	119680794135.9155
1977	126432483599.26349
1978	111934181162.95398
1979	169595787735.69098
1980	247578184149.2428
1981	216199447278.38745
1982	164214691188.08447
1983	136142645520.6206
1984	127454705163.90363
1985	115210350292.92413
1986	75189754540.229
1987	92745803036.32599
1988	82205840313.37927
1989	83861547935.8844
1990	195741775170.02008
1991	104353917564.95331
1992	128655573625.94879
1993	123530761486.84839
1994	141121495116.74677
1995	169207427183.5608
1996	207059647870.11475
1997	215157823830.14648
1998	180651606711.32288
1999	249638122309.58472
2000	332992934760.6902
2001	308237147299.4712
2002	305580569502.87866
2003	371911299197.4758
2004	472697732437.9729
2005	633933605345.4933
2006	768206113004.6456
2007	894030835114.5935
2008	1175682873340.261
2009	853798298366.4246
2010	1146343917648.6218
2011	1451957075052.4016
2012	1535511638373.4011
2013	1451156585544.9907
2014	1338422892679.8496
2015	940537009541.1274
2016	945298245155.9419
2017	1060507257626.6904
2018	1220972157033.4272
2019	1151227831870.1206
2020	861747873401.7163
2021	1228397405136.0913
2022	1744623167512.8037
2023	1555491395458.981
