Year	current US$
1970	0
1971	0
1972	0
1973	16.5175162246257
1974	39.4620491674916
1975	13902.7196789104
1976	111037.842447406
1977	38752.8199624979
1978	40505.3128938859
1979	98068.2737415454
1980	3012245.78152329
1981	492590.679004997
1982	914181.147754827
1983	1612573.59172871
1984	832027.465868315
1985	446196.239922079
1986	128299.5950051
1987	206556.207544507
1988	115486.778745148
1989	186251.113993349
1990	257952.879130258
1991	84191.8212818785
1992	46515.0036652866
1993	23252.6968782628
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	1658936.45247316
2002	4026711.91456957
2003	4774798.82538418
2004	8420683.17415456
2005	14145520.4223773
2006	23456095.4356302
2007	41790547.3801385
2008	74599240.9023237
2009	55764125.0729199
2010	77088966.5106081
2011	129307470.106936
2012	112985798.118942
2013	93008839.7954513
2014	79903381.5128603
2015	38220331.3561934
2016	30897591.0522174
2017	42148412.6240573
2018	114181953.042314
2019	105454090.027008
2020	55651264.6972716
2021	132826207.149054