Year	constant 2015 US$
1990	8254327470.079574
1991	7739459159.974622
1992	7315254742.273426
1993	6957010375.96632
1994	5984169856.408205
1995	5286690626.503991
1996	5568612558.226368
1997	6173983132.390127
1998	6991881964.919248
1999	7627821011.52596
2000	8217307368.222337
2001	9639421168.648682
2002	10703635277.83346
2003	11473499037.904045
2004	12552098630.534317
2005	14389970457.472736
2006	16218121847.39414
2007	18386337974.941353
2008	21389059511.900074
2009	21389102133.262417
2010	23410821792.765076
2011	23927681113.589878
2012	26484818579.152782
2013	29305960452.724308
2014	30560782780.220104
2015	29851833386.80986
2016	28899534300.82031
2017	30252727389.03589
2018	30714576034.875233
2019	32270794974.510544
2020	31885374074.124817
2021	33403144700.09635
2022	33316307777.041077
2023	35956556598.57843