Year	constant 2015 US$
1981	2484401291.119809
1982	2691653428.4692774
1983	2848685511.089639
1984	3017709971.350905
1985	3190107887.215649
1986	3489180326.59186
1987	3609858808.6201577
1988	3794249397.05414
1989	3952780563.8535075
1990	3826905840.863905
1991	3494212069.764986
1992	3170771527.9081354
1993	3070296387.6531544
1994	3135828262.428216
1995	3335782058.8671074
1996	3410339918.2936425
1997	3543231097.142835
1998	3661572769.3561482
1999	3773996564.976645
2000	3817248910.66296
2001	3929961221.7152085
2002	4115965440.0572534
2003	4404273778.319174
2004	4872245746.852375
2005	5225662152.644289
2006	5672782077.14901
2007	6254129712.425986
2008	6810770268.31901
2009	6724368909.15607
2010	7152385862.091456
2011	8389088993.666543
2012	9422609644.692373
2013	10520241544.914864
2014	11349786311.987452
2015	11619892590.694118
2016	11793003947.89261
2017	12457761002.743181
2018	13422599720.361551
2019	14174566537.45549
2020	13528524951.028664
2021	13749955731.693554
2022	14441951078.837976
2023	15456208129.696028