Year	current US$
1970	35280005.6448009
1971	41574247.98189311
1972	48740238.47987939
1973	73567632.51405312
1974	98756075.36466542
1975	109832136.17613985
1976	127395444.2884586
1977	126230717.91035724
1978	189018584.4764961
1979	213837025.8388748
1980	241897261.47856906
1981	247560430.15482187
1982	222896901.3809858
1983	259882843.42686567
1984	280451214.843437
1985	264517041.64892226
1986	263842192.92701155
1987	296178099.1057375
1988	339425848.2468777
1989	392292707.1240351
1990	288772814.52593726
1991	362500000
1992	404623885.5484139
1993	420073589.5339329
1994	421194029.85074633
1995	371576111.3605747
1996	460546282.245827
1997	453943239.6625061
1998	350750254.9409994
1999	286530129.97243005
2000	252350983.79629627
2001	216667160.59627184
2002	187683359.92588398
2003	230970537.74938795
2004	263308191.32756
2006	195212702.4423118
2007	229844544.2791499
2008	293293403.77054375
2009	301192823.7481684
2010	347767545.5467485
2011	451222453.2575276
2012	525195378.49003285
2013	518886483.0185653
2014	493979527.78618544
2015	386049258.56411546
2016	400937495.3120447
2017	442422073.84122115
2018	415716435.8609767
2019	418546183.0981674
2020	401900043.17951524
2021	444303363.1139327
2022	514942525.1435628