Year	current US$
1970	50534.385422964
1971	32260.5788739415
1972	29742.7892467712
1973	55746.7059270621
1974	64194.4165315007
1975	28554.155427341
1976	0
1977	0
1978	0
1979	4138.10479280629
1980	9724.31631719173
1981	1515.09323285561
1982	1024.91664256779
1983	4547.94610838194
1984	21272.3792720257
1985	11499.9015283302
1986	74079.4691824953
1987	446735.495186907
1988	94383.9439687327
1989	62177.8283339575
1990	125614.875980372
1991	25756.9143695493
1992	8155.19616332647
1993	59479.3929223927
1994	534008.891619576
1995	179183.493711154
1996	815435.484097987
1997	753199.689159618
1998	543185.450350995
1999	906234.001651874
2000	1872109.14157103
2001	2162105.43173112
2002	3729344.80434322
2003	1384219.98573558
2004	493447.871344782
2005	860316.057080656
2006	1679140.00020715
2007	13270711.9884574
2008	1889596.13373652
2009	7143676.72539715
2010	21523345.3840281
2011	25820076.3838882
2012	54034773.2148762
2013	20908583.1115839
2014	1626477.02360798
2015	821922.883096885
2016	1261603.80122613
2017	3214409.32142518
2018	3281287.32284472
2019	3012688.5215459
2020	1344717.59582449
2021	4842650.09097845