Year	current US$
1990	11141534662.0567
1991	14636265802.8915
1992	18034293356.1358
1993	18917360524.5123
1994	26599221707.9181
1995	34513596798.1735
1996	36226244711.6732
1997	41481142944.4273
1998	32973967432.6819
1999	30338778675.2016
2000	31993613103.4665
2001	23044116642.5636
2002	21646702676.8151
2003	23418531695.3564
2004	29657338486.9607
2005	37782920308.6239
2006	52674770426.5055
2007	68939156313.6496
2008	60102015223.9594
2009	58147001964.5306
2010	94210252520.9562
2011	104296749055.376
2012	104756079060.813
2013	102220349133.611
2014	110173160443.267
2015	94235542140.1226
2016	99249428911.7801
2017	110498938243.765
2018	104434341886.101
2019	91762746503.1053
2020	78150980848.8069
2021	110166542088.241