Year	US Dollars adjusted for inflation)
1960	58676864790.6159
1961	58789404370.6503
1962	61201529275.17329
1963	66451775245.1795
1964	69741462842.48621
1965	73148317148.59811
1966	70039137550.0672
1967	59012436135.54401
1968	58275748342.626
1969	72376954918.22911
1970	90476435132.86928
1971	103358046139.00401
1972	106835281640.47401
1973	112596652491.71602
1974	125163198429.121
1975	118619982379.00697
1976	129346018408.09599
1977	137137974986.36002
1978	129233124891.88098
1979	137968548713.888
1980	143769893085.07098
1981	124895953347.34999
1982	123580566577.73199
1983	117339190482.24199
1984	114967134663.80099
1985	124535653493.06
1986	113633581983.79201
1987	101416039990.55199
1988	109065367143.94099
1989	116118832909.28697
1990	130942573770.77502
1991	130133544307.97501
1992	130697966487.24501
1993	133430047764.44098
1994	134643945417.105
1995	134229957065.96201
1996	140933005864.349
1997	144882310095.27695
1998	148816792319.92401
1999	149522537467.564
2000	157474285635.20502
2001	164420579040.97198
2002	170643319497.931
2003	188312043745.758
2004	251840571175.26498
2005	260515639753.02399
2006	281906487385.06195
2007	301156185312.51196
2008	320039472272.41901
2009	342232340656.56195
2010	369062464570.38702
2011	387099974051.55096
2012	403665055423.22595
2013	425440429014.35803
2014	452284522879.21289
2015	464282244063.79297
2016	456775408619.54303
2017	460496045439.72607