Year	US Dollars adjusted for inflation)
1984	22466506503.8517
1985	23321549315.0894
1986	23972055325.3215
1987	24831086648.2253
1988	26106165845.6517
1989	28028757795.2627
1990	29458481786.1674
1991	31214455910.1046
1992	33913272582.3353
1993	36650999734.92071
1994	39890574620.3549
1995	43696326983.664
1996	47777571569.0438
1997	51672439404.9752
1998	54651074161.61169
1999	57259890667.88229
2000	61146300622.5134
2001	64933025784.18569
2002	69037326105.908
2003	73800255066.95578
2004	79362145321.37248
2005	85351803030.4192
2006	91307613276.96701
2007	97817393659.74821
2008	103355590690.41599
2009	108934619580.60603
2010	115931749697.24098
2011	123166241860.41698
2012	129629226783.14
2013	136657571781.85802
2014	144834688912.56604
2015	154508616051.56198
2016	164104855205.20297
2017	175284081081.17697