Year	current US$
1990	1050932494.74936
1991	503780104.175505
1992	590809125.999762
1993	526570066.501985
1994	640525462.563635
1995	728061664.523925
1996	798291372.599712
1997	979387695.082356
1998	1113295368.3662
1999	1290635508.54106
2000	1126173293.7889
2001	925020442.301428
2002	798863325.035298
2003	834539862.434939
2004	992834792.846444
2005	1191468435.77188
2006	1518027812.42226
2007	1845763442.36652
2008	2595610503.37596
2009	3027422993.48639
2010	4919213416.49974
2011	5771139407.74544
2012	6476573497.10947
2013	7271987176.70085
2014	8412065255.02532
2015	9149489493.4348
2016	9740348673.22602
2017	7041690507.57847
2018	6052662606.52175
2019	7799920802.72607
2020	8139996773.54423
2021	9805130021.16117