Year	current US$
1990	2604677903.03392
1991	2844935204.37497
1992	3112814838.04812
1993	3057922884.98063
1994	3345350023.30431
1995	3677627564.54114
1996	3662730445.17819
1997	4115846577.24911
1998	4386268580.36484
1999	4940105389.31522
2000	5444306198.08193
2001	5720942633.56352
2002	6302776294.26519
2003	6695965335.41737
2004	7403270927.17346
2005	8154819304.93636
2006	8381740516.86304
2007	9134161858.80923
2008	8702673551.04103
2009	7939748188.60712
2010	7809004788.85035
2011	8184909228.76206
2012	8366231629.09229
2013	7848926907.8588
2014	8113305822.40028
2015	8911577998.98224
2016	8871231210.81264
2017	9857533560.39174
2018	10070505114.8907
2019	9786125233.62086
2020	8777937000.00468
2021	9664158533.31844