Year	current US$
1970	19310000.16070902
1971	31010000.100359324
1972	19139999.80315566
1973	40180000.07234514
1974	64219999.91312624
1975	106050000.14975667
1976	72200000.55432317
1977	74839999.84711409
1978	122440000.6234646
1979	135919999.41319227
1980	174140001.2075901
1981	198280001.61238018
1982	178439999.92310998
1983	221620002.95519847
1984	278919998.1801211
1985	349950002.3126603
1986	222240000.79557288
1987	257860002.35006207
1988	312629998.37100494
1989	310549996.79327005
1990	433520002.2161005
1991	767549994.4835899
1992	989989986.9561192
1993	871219996.6013434
1994	757630002.163351
1995	613140006.1026213
1996	214139999.9260903
1997	86259996.39369558
1998	117279999.04751779
1999	175750002.8908254
2000	190549999.32274225
2001	197989998.78764156
2002	208550000.65825877
2003	202740000.08404243
2004	149469999.80509287
2005	329679999.66815096
2006	216299998.93903732
2007	132239999.92012976
2008	180130000.09208927
2009	166759999.61607155
2010	123909998.28279018
2011	164209999.56876042
2012	229608959.6301316
2013	229550103.65787902
2014	171622298.33612218
2015	162660347.74854776
2016	158228002.78291094
2017	163794958.97516617
2018	105260346.08483319
2019	139806534.74666178
2020	151064419.66630524
2021	232601519.36113837
2022	186185373.18706504