Year	current US$
1990	11072.1608389101
1991	10075.8230304742
1992	5718.11181130347
1993	1020.53052799349
1994	1367.87039428718
1995	5329.49194244493
1996	3956.07621197943
1997	2072.72205335708
1998	2457.07861345526
1999	291.344758773755
2000	6174.24517698742
2001	13245.7641263041
2002	7127.05570686449
2003	9956.72959313945
2004	48219.2718024796
2005	33998.6945671154
2006	41225.4491833355
2007	629428.282096237
2008	379245.00872588
2009	148409.509334394
2010	550347.466029372
2011	1807842.83123719
2012	1834347.32552133
2013	1534095.52779273
2014	1995902.81055836
2015	1407038.2793085
2016	1096851.39054694
2017	51529.1450856507
2018	50010.8564874863
2019	34670.5233640902
2020	29414.7159427969
2021	60700.291555029