Year	current US$
1980	2466921.67845004
1981	2989992.67840483
1982	3517128.26107734
1983	3911819.76134423
1984	3179474.66261985
1985	2749460.09177134
1986	2009228.15369364
1987	1509692.65901999
1988	1092995.10402312
1989	1739924.41833735
1990	2025398.74277776
1991	1888541.40709883
1992	1614748.40879937
1993	1333782.72015153
1994	997218.675942976
1995	1262590.39913362
1996	1473878.3004263
1997	1514246.15834966
1998	1564450.07941547
1999	1151708.55349158
2000	1084622.71566698
2001	1356510.09081764
2002	1455978.83551007
2003	1293817.9925245
2004	1670017.60968603
2005	3602033.83023635
2006	378329992.42704
2007	190302929.623832
2008	200077441.833085
2009	86873915.6501865
2010	83472411.7645943
2011	111201664.373687
2012	141417886.339026
2013	123021448.235659
2014	85440258.402639
2015	28246539.2717138
2016	22985161.910569
2017	30668314.0236951
2018	2494085.60850841
2019	1897957.17717411
2020	1295699.71566581
2021	2009554.03372152