Year	constant 2015 US$
1997	1502872846.9636207
1998	1618778524.340783
1999	1605844601.1336265
2000	1441940065.5491004
2001	1479033084.0289748
2002	1583361370.1865852
2003	1586318318.7469325
2004	1702026681.3412833
2005	1929498493.2621815
2006	2142954603.2795408
2007	2202833410.557138
2008	2392275549.343601
2009	2358545413.8278947
2010	2426402822.7737765
2011	2603357544.0081625
2012	2716639136.4015336
2013	3013267962.084801
2014	3113663525.543882
2015	3036966131.8293414
2016	2997347979.0141444
2017	3060046013.2970505
2018	3190123566.863572
2019	3329691964.2646112
2020	3499482150.7673755
2021	3604909744.569478
2022	3727944179.7750177
2023	3859221662.2370086