Year	current US$
1990	499876785.168812
1991	395257210.93536
1992	585123350.061401
1993	1452459611.48426
1994	1050609871.61407
1995	1106245192.73663
1996	1248076060.99621
1997	1407402324.02282
1998	1280077382.29939
1999	1198510577.6873
2000	1040140145.89781
2001	1102744362.26981
2002	1036206993.3807
2003	1063716210.35344
2004	1422992050.55186
2005	998473399.264904
2006	1226400949.57219
2007	1047249540.48057
2008	106824728.974066
2009	955576176.458058
2010	1209257822.95412
2011	640717269.845418
2012	1056289507.51316
2013	1099854009.88326
2014	1358113326.53777
2015	1925404266.72997
2016	2288447046.48973
2017	2495240568.80165
2018	2737984064.3425
2019	2813308508.88117
2020	3101988783.20053
2021	4386432881.41586