Year	current US$
1979	171452177.6531873
1980	178907483.5900498
1981	189275647.8020579
1982	206359885.6269759
1983	219612128.58701903
1984	211528454.8478121
1985	230418308.71632928
1986	221473710.8631923
1987	162478310.0969432
1988	200663050.381342
1989	326224719.10112464
1990	376593194.49211967
1991	382296182.9681322
1992	413442308.6412708
1993	438325955.47339916
1994	488551182.4468538
1995	524271154.3019688
1996	566236727.7132472
1997	615997367.8286316
1998	471860346.1148058
1999	504664593.5139936
2000	411891061.19406736
2001	401196607.87868667
2002	492759023.1612115
2003	610688209.6457791
2004	747697395.986766
2005	911066097.5009441
2006	849238609.4021527
2007	900215540.9544742
2008	1096152891.0087483
2009	785140849.2605004
2010	922356563.6318347
2011	1081940315.401403
2012	1113666344.288489
2013	1103881678.532967
2014	1217177664.624397
2015	1229866836.875604
2016	1294101108.0451837
2017	1390566589.0645764
2018	1538239310.7293382
2019	1507779964.7089002
2020	341339636.3554222
2021	170056777.317696
2022	1237610210.7203104