Year	constant 2015 US$
1996	5437411625.0333185
1997	4460286765.26289
1998	4220263597.7839174
1999	4344089920.221402
2000	4613346259.727297
2001	4797470176.9855995
2002	5141571443.715683
2003	5675934024.689513
2004	5885207387.660702
2005	6261494234.188945
2006	6695056637.494112
2007	7547771011.183022
2008	8312249293.847231
2009	8371577789.946078
2010	8511417982.465073
2011	8662176537.172598
2012	8673349283.281628
2013	8832642512.445765
2014	9081188066.479345
2015	9188593701.288504
2016	9384018552.112833
2017	9613312012.167728
2018	9922431682.328997
2019	10250234952.339266
2020	9901917611.408922
2021	10363759929.822453
2022	11104360580.15364
2023	11441107604.457811