Year	current US$
1990	1566666666.6666665
1991	890000000
1992	97278597.78597786
1993	281145286.3215804
1994	151108280.6604149
1995	278800827.9059124
1996	331297885.6220205
1997	332591035.9752847
1998	370121478.4181959
1999	276809302.54006815
2000	279047104.9840696
2001	353155799.7974911
2002	463399179.56229603
2003	628419807.238435
2004	719042308.0993512
2005	859299719.3842744
2006	1211266502.1349943
2007	1647197840.8714824
2008	2298751247.535357
2009	2447551142.5347385
2010	2506728133.565911
2011	2630412594.372953
2012	2955278783.67456
2013	3126414043.370582
2014	3541544749.9639826
2015	2648834040.6260614
2016	1852703666.428112
2017	1920512678.9859135
2018	2176507646.688239
2019	2410470588.2352943
2020	2604941176.470588
2021	3519294117.647059
2022	4163705882.3529415
2023	4181058823.529412