Year	US Dollars adjusted for inflation)
1960	2089939951.70206
1961	2119151955.09999
1962	2232740960.41821
1963	2197029295.47761
1964	2141863216.79766
1965	2154847786.76298
1966	2115907696.34924
1967	2132140969.44362
1968	2122392418.67013
1969	2268440825.16507
1970	2310626031.93245
1971	2258691791.87005
1972	2284658076.24205
1973	2093183555.73919
1974	2197044238.05691
1975	2395003796.72602
1976	2466393238.10268
1977	2521507874.27877
1978	2509666011.24724
1979	1971566321.0769
1980	1852332481.41292
1981	1871650792.18187
1982	1971720641.87343
1983	2280861156.6978
1984	2327593696.09462
1985	2834840918.9922
1986	2719132138.03532
1987	2654177278.46846
1988	3065106535.07565
1989	3214828869.92383
1990	3080498133.76201
1991	3343422874.88921
1992	3610944962.05134
1993	3043671392.72094
1994	3352204941.73449
1995	3393656609.04142
1996	3468808219.53809
1997	3664913557.29045
1998	3919682951.98766
1999	3892917388.43263
2000	3858672132.83035
2001	4308521325.94343
2002	4674366911.82481
2003	5362511643.5076
2004	7165890624.73454
2005	8407921034.68586
2006	8462426392.92879
2007	8739274636.73703
2008	9006057733.52815
2009	9385905829.95638
2010	10657705536.4978
2011	10666537555.594
2012	11614000868.1864
2013	12275999075.9554
2014	13123041176.3602
2015	13486244396.1105
2016	12642608725.1014
2017	12269174945.5376