Year	current US$
1980	357388519.49242
1981	288906902.215754
1982	279925199.064391
1983	309550489.569687
1984	261436681.84538
1985	234463139.843462
1986	263600988.603757
1987	321979268.422961
1988	330408845.315362
1989	288883061.51085
1990	351430299.201191
1991	368668153.652551
1992	392723467.248756
1993	366017359.346796
1994	360427261.231837
1995	409798565.105501
1996	387460546.401673
1997	408655196.382087
1998	385970123.9241
1999	407711520.645288
2000	423912805.911627
2001	387914273.439566
2002	376037332.107276
2003	600576576.666512
2004	786968401.268105
2005	877070539.475606
2006	928775191.911005
2007	924199264.949485
2008	949982169.642576
2009	1012230674.83217
2010	1270073509.20676
2011	1453464619.41812
2012	1406951374.06016
2013	1336989492.41546
2014	1371625978.31876
2015	1243945220.01316
2016	1191274127.77555
2017	1356769805.75911
2018	1448426986.04531
2019	1399834933.65623
2020	1271790946.47551
2021	1536768937.70118