Year	current US$
1970	1630430217.4186954
1971	1998611091.4270327
1972	2337208949.3336573
1973	2980158867.8067226
1974	3290611404.9497266
1975	3932349958.8666325
1976	4298359754.421332
1977	5032215647.600263
1978	5313316673.978978
1979	5984478979.483027
1980	6825194363.45967
1981	7079188082.585591
1982	6846451812.829253
1983	6886683844.087495
1984	6794461802.364761
1985	7848369236.495603
1986	10914303487.633034
1987	12493803339.517626
1988	12671321160.042963
1989	11713520168.006372
1990	13329712286.531303
1991	13746008730.660662
1992	15236463110.467455
1993	14637515682.045643
1994	16266577873.498074
1995	20192101275.413563
1996	21650748860.429783
1997	21378544971.30093
1998	20926959218.565693
1999	21458867576.16166
2000	20205980594.87832
2001	20284818221.248486
2002	22990681129.286808
2003	26047569277.70402
2004	29607168288.63043
2005	33276678308.110207
2006	37230131133.7377
2007	45149871197.77539
2008	46178723404.255325
2009	41519965650.493774
2010	46895794843.513
2011	52609395067.55226
2012	53067640739.14912
2013	54787063829.78723
2014	52722401481.08963
2015	42449767489.924545
2016	42674047619.047615
2017	45404150715.29315
2018	48245434983.09253
2019	45300113636.36363
2020	42898380387.64494
2021	49994295692.66589
2022	44192285689.52066
2023	43208898706.216606