Year	current US$
1990	1750000000
1991	1233333333.3333333
1992	610000000
1993	82652388.79736409
1994	66536639.73251602
1995	108637058.36748256
1996	574609888.7911032
1997	647991830.4431598
1998	923371925.944207
1999	733819078.8222574
2000	778047457.6271187
2001	876817797.4420856
2002	831445637.4463434
2003	1091743760.6319764
2004	1443395242.0701168
2005	1845504571.9723613
2006	2030292631.0622191
2007	2683520783.098632
2008	2819843412.0923643
2009	1691841959.8596098
2010	2316372727.5685587
2011	3068890983.963783
2012	3646507692.9226084
2013	3229887095.319686
2014	3852366669.3663073
2015	3641552617.454751
2016	4015959691.134373
2017	4140597766.445032
2018	4438533793.647662
2019	4226638691.827469
2020	3559666044.9561048
2021	3913547145.2078614
2022	4934491667.238187
2023	6554727192.817228