Year	constant 2015 US$
1989	2227999815.273199
1990	2237178882.964624
1991	2151419991.098548
1992	1994147659.3282342
1993	1977726198.2529657
1994	2121447947.03248
1995	2186003983.5894027
1996	2409123478.4125934
1997	3276135001.2193775
1998	3714443526.438311
1999	3824868566.012638
2000	4034602159.4058313
2001	3882247695.599158
2002	3774657023.611573
2003	3787502953.9962316
2004	3921582952.8877068
2005	4481500259.616451
2006	5028610068.063409
2007	4843338508.147656
2008	4557720727.635518
2009	4001271918.190889
2010	3985601228.245207
2011	4283142568.673097
2012	4340906019.288328
2013	4276147925.9505606
2014	4607240492.184902
2015	4333700000
2016	4638658736.282008
2017	5000689145.327569
2018	4892694936.259838
2019	4707644360.935595
2020	3424684686.8418136
2021	4119537106.750915
2022	4028933424.232347
2023	4460622019.731737