Year	constant 2015 US$
1996	1380032754.0922525
1997	1143877719.342848
1998	1215184695.5134454
1999	1280747914.032142
2000	1366499452.7008073
2001	1403300217.365841
2002	1432036328.4687026
2003	1474189500.7420468
2004	1567180568.1020417
2005	1577814919.0397797
2006	1627019148.209485
2007	1671214288.8955302
2008	1789393900.19326
2009	1823479654.1987388
2010	1962976317.5328171
2011	2056667651.7742605
2012	2167577200.036188
2013	2192179806.2712555
2014	2235186832.5437894
2015	2252343961.1195364
2016	2298461165.7701573
2017	2317701964.3975577
2018	2344979797.750479
2019	2359680255.587079
2020	2391513177.4734836
2021	2434574004.830619
2022	2435933519.53262
2023	2419291396.1003623