Year	current US$
1997	6039780233304.224
1998	5907537686926.642
1999	6038016411236.035
2000	6187233846016.321
2001	5786216486839.03
2002	5854970099694.27
2003	6500013956766.047
2004	7263984657598.818
2005	7766362112899.175
2006	8396724317346.368
2007	9442908986262.06
2008	10211965162720.441
2009	9339267766624.293
2010	10570200102177.574
2011	11801870422077.469
2012	12050938833070.605
2013	12275692582230.25
2014	12720621221620.133
2015	12351614370185.342
2016	12412329161299.281
2017	13263549427754.164
2018	14194002115876.238
2019	14042879055003.664
2020	13651818077198.883
2021	16076811269678.53
2022	16027703749811.203
2023	16182038502638.879