Year	US Dollars adjusted for inflation)
1982	4040725726.73423
1983	4272847547.9566
1984	4258120038.86082
1985	4117330409.37387
1986	4133391577.81187
1987	4297152533.91117
1988	4652401294.20089
1989	4948384331.10897
1990	5268749667.90812
1991	5561381055.90504
1992	5751488908.49356
1993	6230374699.29857
1994	6629345200.48067
1995	7393260810.8222
1996	8063985902.92098
1997	8475249334.25134
1998	8890982814.5195
1999	9607057980.57283
2000	9908902840.24994
2001	10422546784.8218
2002	11332715044.1477
2003	12066311003.4579
2004	12887692949.5087
2005	13703814497.5263
2006	15181735862.2212
2007	16458888151.9091
2008	17892251886.791
2009	19109196502.8215
2010	20186496527.1256
2011	22082345211.1269
2012	22929745405.36209
2013	23752213779.2388
2014	24965074811.1287
2015	26260227906.92579
2016	27483055271.6416
2017	28572697919.7527