Year	current US$
1977	39380000.004544854
1980	96630000.52422287
1981	81230000.28543176
1982	75849999.9810011
1983	83319999.51228502
1984	85000000.82142651
1985	91510000.0910461
1986	68789999.39002095
1987	71219999.84048307
1988	87190000.42416154
1989	106840000.42639676
1990	113899999.97243287
1991	112140000.64507125
1992	99909999.71143898
1993	101040000.25242566
1994	157259998.9678711
1995	179659999.52703714
1996	173029999.9564886
1997	165580000.76375902
1998	169270000.4428625
1999	146110000.70907173
2000	113140000.54635108
2001	183920001.17339197
2002	233429999.38130394
2003	212170000.16942626
2004	182449999.57084653
2005	186589999.7074157
2006	195840000.057593
2007	210090000.0985712
2008	266659999.63879585
2009	262270000.26032335
2010	276069999.85314906
2011	263409999.4171411
2012	271386266.1583116
2013	273761492.485879
2014	265401100.73983666
2015	245876832.3883415
2016	200849494.51684955
2017	165846510.0899339
2018	170158830.30742407
2019	246402652.44990587
2020	269693110.0934744
2021	275373083.41264725
2022	311103541.7020321