Year	current US$
1995	783330622.230894
1996	751326948.223606
1997	742786618.815855
1998	806212487.144009
1999	865841989.775006
2000	708386540.688958
2001	746040594.100727
2002	888769049.773525
2003	1226671508.52475
2004	1562283911.31735
2005	1776643964.91034
2006	2141882448.9712
2007	2817523901.94073
2008	3635857690.80164
2009	3500833589.95248
2010	3344039399.7234
2011	3677685039.33465
2012	3657536370.15691
2013	4142267264.40642
2014	4275912623.15761
2015	3814061567.55575
2016	3893974497.13456
2017	4255960791.67841
2018	4811563034.11988
2019	4979086831.84276
2020	5465179843.68364
2021	6375561723.99072