Year	current US$
1990	2603571428.571429
1991	2550943396.226415
1992	1908554572.2713864
1993	1646623195.1560316
1994	1522001205.5455093
1995	1231561860.3994637
1996	1043654822.3350254
1997	921518032.9093261
1998	1320199581.5226138
1999	1086612290.2717097
2000	860541842.2636966
2001	1080772551.2943304
2002	1221106220.2867951
2003	1555318261.4172034
2004	2076176869.4108884
2005	2312352020.668896
2006	2830213848.620304
2007	3719524540.86193
2008	5161299725.276728
2009	4979472364.453397
2010	5642221099.177043
2011	6522756255.012003
2012	7633036903.076341
2013	8448411318.254166
2014	9112605459.328451
2015	8271431485.0748415
2016	6992416096.890184
2017	7536402852.858016
2018	7764999999.453624
2019	8300813599.3084
2020	8133963550.657425
2021	8937805347.13963
2022	10713525200.39978
2023	12060602008.847782