Year	US Dollars adjusted for inflation)
1970	347665923.10783
1971	334068821.99178
1972	355365244.68256
1973	359309417.91181
1974	375691200.38431
1975	405166370.29233
1976	425195588.7187
1977	394708767.49368
1978	446518411.54202
1979	455422633.27347
1980	382770647.74193
1981	452310612.93048
1982	471308030.17795
1983	455291628.63544
1984	496765158.32642
1985	517462843.36278
1986	513354976.86433
1987	528242271.23163
1988	552541415.64674
1989	586246442.11984
1990	622007475.00943
1991	653729856.37664
1992	660920884.60844
1993	674800223.18312
1994	696393830.46297
1995	727035159.05928
1996	811371237.48312
1997	864110367.91952
1998	621295529.69486
1999	627667147.7698
2000	661730564.58524
2001	676215230.00845
2002	669553309.54184
2003	673359788.24092
2004	691953958.8365
2005	721473399.28058
2006	738134802.91013
2007	762219812.78673
2008	786638037.48828
2009	813139675.90305
2010	850633309.81448
2011	919405139.28954
2012	903658643.64376
2013	933080903.82658
2014	942081036.01167
2015	999869068.13784
2016	1062488924.5797
2017	1125377385.5273