Year	constant 2015 US$
1995	1550869297490.681
1996	1124498645174.726
1997	1048645605514.277
1998	512732626045.8166
1999	363686573551.58215
2000	228677736214.14728
2001	197971423187.27
2002	941295990532.3633
2003	472042081973.0806
2004	1174920213814.9417
2005	1157252369265.8467
2006	1508089122715.2717
2007	2482048159674.2803
2008	2760748233170.155
2009	3352190927083.365
2010	3849267626276.715
2011	4167606164831.357
2012	4489699114641.452
2013	4881881019526.214
2014	5231131097913.63
2015	5433393644656.155
2016	5826952628593.094
2017	6199294623007.003
2018	6622539873119.581
2019	6876403653879.589
2020	7073309256110.541
2021	7362936579433.818
2022	7627125856659.945
2023	7910872862066.103