Year	current US$
1989	554798390.7770151
1990	657643198.7721051
1991	763509015.6580129
1992	973009275.2032423
1993	1217360413.568339
1994	1171237701.676788
1995	1735602786.8418732
1996	2113413723.430737
1997	1844685433.6526117
1998	1369501231.4755838
1999	983505776.2527308
2000	777625795.9132534
2001	819753611.4678441
2002	1238558507.0379114
2003	982546150.4331061
2004	1057358593.0418854
2005	1082244620.7245028
2006	1200428211.8881035
2007	1591464943.9785762
2008	1967940263.920907
2009	1883444511.7419662
2010	3225501261.8178535
2011	4800808958.966161
2012	6241362007.799501
2013	7139740050.480911
2014	4663625457.759818
2015	4529020423.867435
2016	3918097624.9993663
2017	4194838332.641751
2018	5547710722.437745
2019	5186602151.120897
2020	4847657213.1828375
2021	4353834218.7531395
2022	4283490481.2046213
2023	4441789245.614557