Year	current US$
1979	1483675.43426999
1980	1565503.68753887
1981	1264031.17549562
1982	1918657.2016466672
1983	2170602.086711387
1984	1798068.195780494
1985	1507362.558708878
1986	1468601.807199222
1987	1597804.31223141
2004	89597019.70502889
2005	99496020.25765002
2006	216933949.76831007
2007	218940084.35455
2008	344466169.2650001
2009	140678658.57402015
2010	342405582.5506975
2011	437236921.84164697
2012	545014339.0827714
2013	623729524.3500137
2014	665149879.4123588
2015	279315103.07303834
2016	195985587.8051797
2017	216798958.1734589
2018	200109828.229702
2019	217456965.445288
2020	365076415.70346296
2021	392764437.50483406
2022	423270566.088859