Year	current US$
1990	2645041436.27275
1991	3292954409.68585
1992	506180045.407642
1993	615486130.37204
1994	880295036.098351
1995	904015554.243063
1996	556945945.137388
1997	620498417.135127
1998	582009806.806052
1999	546245780.667352
2000	598708271.422035
2001	730743554.483995
2002	789264457.855827
2003	867653813.221964
2004	1031489480.97725
2005	1329205515.7912
2006	1615859729.40935
2007	1998178508.94214
2008	2072245136.47296
2009	1844400411.30652
2010	2173007257.69812
2011	2259449148.99024
2012	2038602015.53125
2013	1916354568.83425
2014	2027286679.80929
2015	2051840115.87127
2016	2241248025.01796
2017	2716043223.10423
2018	670841614.016585
2019	655180866.398708
2020	536529094.471588
2021	644808647.980297