Year	current US$
1970	130885.702503597
1971	213045.013142706
1972	183392.449996445
1973	321949.356262228
1974	845017.054760808
1975	758971.008265609
1976	1190469.29998886
1977	1605303.26394165
1978	1334927.20155241
1979	1991726.08167819
1980	3154524.05365287
1981	1219334.5331242
1982	585980.147581094
1983	3861663.58445972
1984	3733531.30093477
1985	4537024.90025999
1986	8096469.66206225
1987	11081558.1283271
1988	10690012.4840111
1989	12285957.9169019
1990	19338756.3256168
1991	13442090.7808302
1992	32197842.5063298
1993	39340126.4817206
1994	50863895.2456473
1995	68424970.4738926
1996	79317318.6594475
1997	74018378.1301807
1998	87994696.9265642
1999	120749264.041802
2000	217161410.054774
2001	234163573.908664
2002	317011607.925301
2003	322112372.042255
2004	400720211.799258
2005	517016851.140342
2006	658376128.373986
2007	517307264.775284
2008	629402940.931785
2009	700779976.549766
2010	881615016.160472
2011	1172268732.63563
2012	1337680806.32013
2013	1157545056.9159
2014	1229560257.49531
2015	1173376784.81452
2016	1257211531.73619
2017	1495035556.26533
2018	1697737368.03018
2019	1846936436.14108
2020	1663475075.71016
2021	2036631101.87104