Year	US Dollars adjusted for inflation)
1960	7006722487.75181
1961	7247030227.98406
1962	7544822194.28984
1963	7877245113.64433
1964	8051279256.56794
1965	8161501178.57403
1966	7813960759.63847
1967	8054268499.87072
1968	8083977501.14921
1969	8569515333.88991
1970	9402769808.2074
1971	9893229993.22431
1972	9647120523.03574
1973	9925399836.8859
1974	10605539531.3192
1975	9287098201.02143
1976	8959246657.18271
1977	9162989534.38082
1978	9939638626.29687
1979	9689662537.65543
1980	9735368282.6931
1981	9394331814.23875
1982	8743901121.08397
1983	8344852426.14241
1984	9066479335.88603
1985	9528109763.80257
1986	10023491500.0837
1987	10504107781.5602
1988	11095296694.7992
1989	11659589360.4173
1990	12047715856.1569
1991	12684055279.6118
1992	13176122962.22191
1993	13815165000.1835
1994	14271065388.7182
1995	14857951398.9653
1996	15541782824.2302
1997	16193971605.2353
1998	16955151553.2998
1999	17701177689.239
2000	18356121284.0331
2001	19090366135.3945
2002	19949432554.0814
2003	20986803043.6895
2004	22162064012.0001
2005	23469626664.7482
2006	24971662216.2561
2007	26057135212.3246
2008	28441310733.8456
2009	29819146303.3442
2010	32174772955.9748
2011	36694403096.1883
2012	40104336702.7708
2013	43036976358.672
2014	44752372405.0267
2015	46469539221.9218
2016	48199090351.9329
2017	52299462264.30429