Year	constant 2015 US$
1995	3619563606.783485
1996	3763315403.0605855
1997	3748889254.386695
1998	3941333327.691618
1999	3860366495.5901556
2000	4030300074.853859
2001	4080489706.9032164
2002	4227408078.0494604
2003	4235435834.409376
2004	4338265039.393785
2005	4419878824.327437
2006	4381886200.689768
2007	4359093591.966931
2008	4379698142.0945015
2009	4375652232.447244
2010	4296536126.141219
2011	4310753797.298558
2012	4468711461.078227
2013	4533266865.824084
2014	4540814473.4773035
2015	4646164348.973219
2016	4601118101.284696
2017	4581663440.606897
2018	4645454339.51943
2019	4857420231.429983
2020	4864429863.949535
2021	5022738646.306282
2022	5023160805.014407
2023	5112946797.32825