Year	current US$
1990	580615848.438804
1991	499379090.254564
1992	289868584.594853
1993	438321188.845446
1994	431648637.110996
1995	377407373.572839
1996	336490258.65634
1997	377246018.934493
1998	486184507.549533
1999	415616960.844517
2000	416592008.305282
2001	443166954.651218
2002	467557669.63688
2003	561388979.193606
2004	672187063.460688
2005	817600129.929835
2006	979437654.735105
2007	1290679100.39766
2008	1585131548.49593
2009	1389937972.58709
2010	1641581590.41562
2011	1895993652.05927
2012	2160159971.93128
2013	2266859949.66388
2014	2316534751.31573
2015	2142510652.37229
2016	2224937676.93414
2017	2314798066.8966
2018	2453609762.6367
2019	2466583139.12514
2020	1968300939.54815
2021	2115194013.02182