Year	constant 2015 US$
2000	6467724532.752629
2001	6665131230.624906
2002	6845857882.163027
2003	7046184065.54335
2004	7056922122.402705
2005	7110450040.250732
2006	7215977389.061914
2007	7490005828.228969
2008	8045306586.279306
2009	7665141265.06324
2010	8096321288.191152
2011	8368246578.78853
2012	8511734283.053007
2013	8950962716.277937
2014	9603837993.233786
2015	10478459358.128439
2016	10334660793.618753
2017	11422986327.910252
2018	12363747296.377245
2019	13268106670.33816
2020	12012277543.16928
2021	13548677950.905153
2022	14675241818.51001
2023	15682801518.011986