Year	constant 2015 US$
1997	757845833.1257846
1998	585351030.8485725
1999	683176298.15342
2000	685436957.0946919
2001	720163574.717018
2002	752760291.0761142
2003	752753169.0372795
2004	760591330.765931
2005	813312003.8609289
2006	835062806.9559728
2007	856761762.9542264
2008	893078135.5130932
2009	918203744.8479122
2010	978158672.1045871
2011	1043956649.6880525
2012	1012102842.93499
2013	1068535639.5313017
2014	1118012899.5160205
2015	1177955665.0450447
2016	1230705197.2314975
2017	1284623170.303552
2018	1275591518.448779
2019	1403473547.3554487
2020	1422787132.7989135
2021	1503611848.749171
2022	1574175163.3568544
2023	1639367403.9666762