Year	current US$
1990	6236363636.363636
1991	3751000000
1992	362656826.5682657
1993	1504936234.0585146
1994	1206092120.5559711
1995	2348225745.970643
1996	3166975296.80222
1997	3450365398.4882226
1998	4231196691.6515894
1999	4186725531.6231265
2000	4194982069.2398896
2001	4288872639.4986887
2002	4696121230.5742655
2003	5264594062.38991
2004	5964509878.945269
2005	6959545006.933419
2006	9576750667.36061
2007	14231626198.544733
2008	20483678586.207737
2009	23864774447.829823
2010	26583727884.37578
2011	31252548481.295097
2012	34837872066.900444
2013	38701610240.89244
2014	42377672127.26
2015	36674819728.19658
2016	27090245042.682873
2017	28168468266.948647
2018	30437989737.749683
2019	33062058823.52941
2020	32918352941.17647
2021	36311294117.64706
2022	43347941176.47059
2023	48640941176.47059