Year	current US$
1967	32764957.180773027
1968	40219021.29550024
1969	40854657.829767674
1970	40825875.64843737
1971	45802087.00172228
1972	65092071.037116885
1973	54457106.60620081
1974	72487583.83032273
1975	97785530.87564957
1976	84131237.66130403
1977	111161001.6826503
1978	144137627.97917148
1979	182169982.66523364
1980	0
1981	0
1982	0
1983	0
1984	0
1985	256751634.34293604
1986	339205883.1315795
1987	358861495.19471776
1988	383148169.8401561
1989	371730141.1020658
1990	456878764.6531802
1991	388363405.8746148
1992	430069989.20982826
1993	372881192.0448005
1994	224780159.28020898
1995	267199079.5779851
1996	305360684.14336336
1997	302123099.9251405
1998	547331051.4236524
1999	505258270.7362687
2000	486199904.93291795
2001	520193675.97871447
2002	600314961.4156053
2003	733818535.5214872
2004	843276936.263152
2005	865057876.758609
2006	915881566.8737537
2007	1137481501.0420976
2008	1524082819.5349874
2009	1489336158.5454278
2010	1676878783.2062612
2011	2442192796.9716773
2012	1926578766.7099729
2013	2235107998.381469
2014	2335240268.7368712
2015	2145453150.353598
2016	2277914629.6141663
2017	2486825478.219275
2018	2710379175.196757
2019	2720448849.286265
2020	2760479424.095796
2021	3137551007.6155844
2022	3215049324.419245
2023	3566541141.7373037