Year	current US$
1995	7103107344.632769
1996	9426517690.875233
1997	11327706645.467922
1998	8422887506.480042
1999	8164627192.04219
2000	2769514880.6555433
2001	5368982955.049836
2002	7382058222.033811
2003	10512690716.744175
2004	11888695714.731062
2005	13055445799.819527
2006	15461738485.504679
2007	20986409710.28253
2008	25344992687.106876
2009	23312771712.592075
2010	21618753127.858494
2011	24759094764.459305
2012	22071473958.57607
2013	24374435320.32471
2014	24327618427.61749
2015	20171649254.662365
2016	20474615568.14766
2017	22500838678.215294
2018	25831667208.634483
2019	26358516393.959583
2020	27668484057.294334
2021	32423511817.0116
2022	33048185167.57818
2023	38527411293.439095