Year	constant 2015 US$
1997	1632902507.9788566
1998	1765431326.863935
1999	1734374872.9445734
2000	1717428591.5583823
2001	1759109048.7212987
2002	1870028240.2259645
2003	1880064455.6964672
2004	2052519957.4894314
2005	2285372913.2263017
2006	2528401443.258685
2007	2561070754.6050396
2008	2718736603.339304
2009	2729951647.067193
2010	2860764662.497889
2011	3032387658.4659276
2012	3157170715.8019395
2013	3453218873.0011554
2014	3511056362.752466
2015	3414520307.27486
2016	3271752226.780954
2017	3327280009.581316
2018	3525387231.13042
2019	3776916971.403389
2020	3871250930.197055
2021	3991223510.1816454
2022	4129834899.9298286
2023	4294300035.2462025