Year	constant 2015 US$
1996	326109882.2385128
1997	266515133.62629658
1998	356686474.1039924
1999	617412825.9164064
2000	857470960.578988
2001	990003120.2461983
2002	1025171682.171643
2003	1145867719.3640509
2004	1357668322.6789467
2005	1687131748.3963034
2006	1972719760.3694305
2007	2349749924.678595
2008	2241060667.5255675
2009	2346649045.8763356
2010	2797055000.268703
2011	2983733112.0662932
2012	2992493064.6432924
2013	3040043644.8696113
2014	3075089307.4138865
2015	3104897778.147061
2016	3457011726.744098
2017	3914839603.7966022
2018	4072441573.5646243
2019	4179782524.509358
2020	3015234841.9263434
2021	4584659820.101448
2022	4928984751.070497
2023	5427963635.965261