Year	current US$
1990	5035526.30942291
1991	72330468.4460238
1992	53744745.1408782
1993	40887018.0890298
1994	220338295.134211
1995	361964474.859779
1996	489301194.943535
1997	554599725.61271
1998	667707365.640374
1999	334773170.073202
2000	174703982.969181
2001	321588590.612615
2002	411653051.455064
2003	529753002.644589
2004	598618523.645187
2005	641670494.627846
2006	1276818189.48418
2007	1942466865.86122
2008	2979637356.1829
2009	2707244691.80588
2010	3157114709.19605
2011	3441539155.76284
2012	3243902877.58182
2013	3236038026.50364
2014	2663041555.99275
2015	1928312555.79415
2016	2421400753.94329
2017	2342683041.39119
2018	2121324405.92746
2019	1595141870.94343
2020	1047653819.10477
2021	-633496124.288857