Year	US Dollars adjusted for inflation)
1982	4132312747.45269
1983	4546451603.09437
1984	4931072050.94031
1985	4967199057.49628
1986	5299655632.4614
1987	6057177279.68512
1988	6530352950.91827
1989	6858491908.02669
1990	7405683885.37453
1991	7676724549.19448
1992	8697709000.32642
1993	9148767894.3753
1994	9537882189.3782
1995	9852187146.41519
1996	9810949490.15129
1997	9783545833.95884
1998	9336275869.86582
1999	9116077359.17464
2000	9640007068.88643
2001	9918449363.31785
2002	10805852004.8428
2003	12065098469.9439
2004	15293178677.6956
2005	16525726403.8053
2006	18726037332.36449
2007	21431509550.1564
2008	22158807872.3833
2009	22451524740.1369
2010	28123640998.72529
2011	34218795692.6193
2012	37379644422.3168
2013	41566235794.2536
2014	41066978186.58
2015	32198767338.2394
2016	31920853731.70881
2017	34824407683.0077