Year	US Dollars adjusted for inflation)
1968	76790666666.66678
1969	81427200000.0002
1970	129182079226.66702
1971	155680187306.66702
1972	191378651013.33401
1973	237635882453.33401
1974	276199588560.00104
1975	251538792560.00098
1976	296365455893.33405
1977	317387724293.33405
1978	300820954506.66699
1979	336677102293.33405
1980	355707632773.33405
1981	362619047920.00092
1982	287448524293.33405
1983	241309051493.33401
1984	230060546079.99997
1985	207527260666.66696
1986	242833346959.99997
1987	226727434880
1988	256449843840
1989	255159860400.00003
1990	293927384693.33405
1991	338039654613.33405
1992	351519121626.66693
1993	346725309733.33405
1994	348662534026.66699
1995	349402017093.33405
1996	358617230506.66699
1997	362575583120.00006
1998	373066209146.66711
1999	359026663653.33405
2000	379223407546.66711
2001	374631983413.33405
2002	364070454426.66705
2003	404999478400
2004	437231125626.66711
2005	461601733253.33301
2006	474473046266.66711
2007	483237181440
2008	513438407146.66705
2009	502865333333.33301
2010	528207200000
2011	581011322640
2012	612452430240
2013	628984081386.66699
2014	651957609840.00012
2015	678729654960
2016	690068799999.99988
2017	684993599999.99988