Year	constant 2015 US$
1997	670445088.0469518
1998	523025745.11192584
1999	600698766.132376
2000	572778566.4020654
2001	615468681.424556
2002	579416635.4796516
2003	517518490.87582314
2004	638949536.8746034
2005	639085216.906552
2006	701073331.0505942
2007	684393785.598755
2008	784348101.4217939
2009	715616033.1605701
2010	761430971.739272
2011	782836321.8591896
2012	762656951.744128
2013	758160864.1868247
2014	753515373.00402
2015	854032492.4355608
2016	898906435.3730025
2017	942020463.7419168
2018	961370911.2588637
2019	932530600.908374
2020	848601273.7860273
2021	984378357.1413705
2022	1013909234.2519921