Year	constant 2015 US$
1990	329213479988.4506
1991	259125532482.08557
1992	183668702213.0956
1993	164900190231.1494
1994	158614706410.9667
1995	159360392080.9953
1996	178213090201.30115
1997	199117550041.6679
1998	199508537916.36743
1999	185868835501.29886
2000	226824958689.34473
2001	205728306608.48758
2002	230630750735.66293
2003	267331785093.9308
2004	317714999461.44135
2005	347876956450.24786
2006	379908917884.3859
2007	438996937379.9068
2008	458087972515.55035
2009	365931764466.3802
2010	410784105613.99316
2011	466941416541.02856
2012	487475485245.1666
2013	512738604439.0482
2014	495167276886.05786
2015	479834787149.03094
2016	494903769058.6047
2017	543536089102.89197
2018	556451139344.8254
2019	567854715662.7019
2020	553917629448.2606
2021	594170619952.9108
2022	624824312813.7019
2023	688184988949.1559