Year	current US$
1992	1661807580.1749272
1993	7271329746.348963
1994	6434110068.395101
1995	5873262227.7876005
1996	7423103792.41517
1997	8964437735.849056
1998	8827190939.881456
1999	10684603658.536585
2000	7764867492.286234
2001	6592995208.222412
2002	5610550953.798942
2003	5653413840.673708
2004	6293615580.847723
2005	7154785523.029094
2006	8584962917.992977
2007	11436264127.64745
2008	14611048680.618744
2009	18168223686.90384
2010	30616151186.32925
2011	36851317505.67891
2012	42139418847.56633
2013	46917325268.42338
2014	51189654479.826004
2015	55943950539.44531
2016	57103069045.22769
2017	39835547614.857445
2018	32741407690.819897
2019	35893879908.28115
2020	35460934240.32337
2021	41613627580.90999
2022	49469095575.12971
2023	54298308053.86924