Year	US Dollars adjusted for inflation)
1970	1022930411.1163
1971	1070491206.24643
1972	1157733493.6236
1973	1247903187.07193
1974	1318020243.18285
1975	1325166623.52504
1976	1368947306.81745
1977	1407805910.58157
1978	1428402113.57242
1979	1428995717.42599
1980	1460558340.33864
1981	1458623472.81247
1982	1476804647.19237
1983	1502945836.75764
1984	1529768711.11779
1985	1565281267.29392
1986	1616204903.65455
1987	1705857764.18649
1988	1792759723.25731
1989	1879296849.01282
1990	1950360346.83369
1991	2000016577.27601
1992	2018600970.43982
1993	1997779424.18469
1994	2045390257.51495
1995	2101791877.24365
1996	2199519738.00303
1997	2398964977.79976
1998	2475606878.11635
1999	2577084005.24761
2000	2668012839.88281
2001	2789321202.45229
2002	2969818586.67949
2003	3331207491.64175
2004	3585973903.04456
2005	3851227772.83026
2006	4025933064.029
2007	4027543882.80023
2008	3681577710.754
2009	3545703433.76383
2010	3355695364.23841
2011	3199771534.45741
2012	3148088242.81882
2013	3159158337.77854
2014	3231113955.01675
2015	3258326510.42858
2016	3319880351.13342
2017	3382068237.52481