Year	current US$
1990	7052126408.571318
1991	8463708643.241858
1992	9785013833.985075
1993	7004632519.630713
1994	6470169475.95646
1995	5698980018.892968
1996	6646062271.062271
1997	7232037078.022679
1998	7141115630.894789
1999	6688069062.613867
2000	7059880122.610749
2001	6486917086.456969
2002	3210236220.4724407
2003	3280708984.375
2004	4364230769.230769
2005	5351865085.582608
2006	6048926134.235504
2007	9114755137.033766
2008	10478749748.684578
2009	11085698513.163584
2010	13159492227.987455
2011	21050980597.180744
2012	22552985748.933945
2013	23858450002.044518
2014	24467817560.802326
2015	24766255674.37247
2016	24167181517.9999
2017	27042085778.651474
2018	27099263205.63061
2019	30135236289.596447
2020	29678821488.521004
2021	13290507650.475973
2022	16056553106.836962
2023	16068145246.830225