Year	current US$
1993	685677689.7997205
1994	735194394.2133815
1995	885897028.7246807
1996	835600000
1997	867813199.6521634
1998	766135522.2919685
1999	733564282.2057341
2000	762432269.7170379
2001	848582239.5489067
2002	926511133.8709099
2003	1146873275.892763
2004	1444870708.98311
2005	1682299786.912972
2006	2349012008.2172976
2007	3707207849.6829176
2008	4153058027.093399
2009	3062730947.9692993
2010	3303747207.960233
2011	4131289365.302852
2012	5030069392.203995
2013	5124434510.234911
2014	4140500777.002115
2015	3319748757.000719
2016	2973477077.5970163
2017	2928462636.6503224
2018	3220194647.334884
2019	3408735466.3256936
2020	3125458368.202418
2021	4258328654.1071815
2022	5258453958.476396