Year	US Dollars adjusted for inflation)
1979	270194371.44061
1980	239392735.35893
1981	249446399.77179
1982	276137456.44124
1983	314335812.94087
1984	344468159.09959
1985	347857689.09548
1986	347398092.2652
1987	337344400.87191
1988	331570710.01946
1989	336655005.62649
1990	376065472.45431
1991	387871376.91635
1992	397925067.08326
1993	400912450.15924
1994	437220634.09032
1995	441644258.79392
1996	451927747.37597
1997	474132041.4672
1998	494526670.12654
1999	496182287.1404
2000	525566423.17907
2001	507231997.72923
2002	481306261.67508
2003	501970814.77406
2004	521973121.0675
2005	549652584.77337
2006	596181554.77783
2007	627025086.55465
2008	667458933.18214
2009	689570618.18954
2010	700804286.22435
2011	709376703.20725
2012	721824490.38557
2013	736038269.04534
2014	753195366.84087
2015	747161562.61257
2016	777052317.45748
2017	812024958.06687