Year	current US$
1970	90099360.8433666
1971	104889795.33384584
1972	124940289.32382013
1973	165928881.5555197
1974	193980464.8821012
1975	246389101.8536131
1976	272489300.46782696
1977	303493119.4807626
1978	436912067.78428715
1979	503173104.39188683
1980	534699362.8961609
1981	511647750.1244755
1982	522096760.2910935
1983	524023624.8905505
1984	502620991.85294354
1985	529073612.4535789
1986	779357802.5000597
1987	1052848995.9710084
1988	1161757671.017563
1989	1119983801.2133808
1990	1421509216.3742354
1991	1484160302.149524
1992	1631177029.4506257
1993	1673085244.6878996
1994	1948129622.7513213
1995	2428525060.6992655
1996	2504012993.4223833
1997	2298389802.888832
1998	2479699106.022639
1999	2664105901.188626
2000	2483889858.323124
2001	2491800558.7767353
2002	2688618747.381476
2003	3070803051.4216375
2004	3454373797.744424
2005	3659319116.880572
2006	4000102086.1463513
2007	4601429897.214683
2008	5081479840.087157
2009	4504375348.070381
2010	5082337238.447185
2011	5739706004.896165
2012	5456102482.286143
2013	6391708310.677266
2014	6657526979.7227745
2015	6268515276.174405
2016	6237302033.50132
2017	6474308717.852892
2018	6692620691.841458
2019	6436467007.119318
2020	6405870210.32293
2021	7710380085.922573
2022	7364654515.139836