Year	current US$
1976	41038060.638192
1977	43721638.226016
1978	54362975.55803733
1979	69788623.0693917
1980	84440662.98899168
1981	89938956.62170288
1982	80854563.19483088
1983	82645874.10302672
1984	93312975.81949918
1985	111791914.22782768
1986	109096430.93224223
1987	126257745.57090679
1988	144097503.39142007
1989	141058885.06691286
1990	158918412.8636797
1991	178755632.41185805
1992	220026041.43857497
1993	246225799.25049236
1994	289525567.6318925
1995	304743800.8114022
1996	234985470.27535808
1997	215854075.3190852
1998	188794808.45403036
1999	202077119.583534
2000	193235921.53424555
2001	205338661.27129662
2002	231066279.35139757
2003	257693083.11860582
2004	375746364.66898406
2005	423837025.1489167
2006	488274369.05156577
2007	716177331.4434569
2008	840164651.3427533
2009	827537969.3946906
2010	845187133.6826022
2011	761399869.2487899
2012	881349615.0538886
2013	969825526.355958
2014	1173456657.5298731
2015	1182813397.283599
2016	1238607175.9224718
2017	1596951450.6060913
2018	1745334366.8225195
2019	1687456414.0053308
2020	1075458468.2754033
2021	1537603477.0657084
2022	2015660864.076441
2023	2256622329.1351924