Year	current US$
1990	8341506910.387873
1991	5444429899.201467
1992	4782916666.666667
1993	5533583316.887047
1994	5980097759.034252
1995	6798375039.345294
1996	6478430100.551411
1997	6229404822.02697
1998	5995664508.68563
1999	4547755014.726561
2000	4043490357.7917075
2001	5311796410.214588
2002	5224950938.4691105
2003	6887274635.264323
2004	9525786563.967966
2005	8354941374.2817
2006	9543240382.729265
2007	9605003588.639393
2008	13506041229.79541
2009	10648848515.655104
2010	8804650870.07143
2011	11462838121.529562
2012	8133354477.827115
2013	10457382200.337328
2014	9882941321.370188
2015	7873070826.905981
2016	7953004336.0942335
2017	9328112183.811838
2018	11106304848.999788
2019	11095193992.34295
2020	10504072580.721169
2021	13611976876.356384
2022	11343731170.583185
2023	13814966224.340336