Year	US Dollars adjusted for inflation)
1992	40719116151.92669
1993	41493319725.4483
1994	44068200326.76409
1995	46643323562.6402
1996	49795081605.29519
1997	52816419598.4677
1998	54935315957.9278
1999	54822660413.6773
2000	55486109654.2554
2001	57326288833.4398
2002	59919037774.8649
2003	63165880222.50902
2004	66487670525.7091
2005	70976227122.33089
2006	76975767928.5596
2007	85288825294.8242
2008	90090397691.86591
2009	85205207756.77748
2010	89501012915.7314
2011	92024135539.06581
2012	93549112293.05312
2013	94943598803.0619
2014	97554865847.23448
2015	101310826326.84097
2016	104679102604.032
2017	108238366185.51501