Year	current US$
1990	12503686440.677967
1991	9515843478.26087
1992	9604834905.660378
1993	10250639153.439154
1994	11242383255.813953
1995	16393309745.248686
1996	16375743626.062325
1997	15559948979.591837
1998	16498082804.385458
1999	17081451549.110086
2000	15171585234.610416
2001	15524956564.65943
2002	17280177556.109726
2003	21857206988.314243
2004	25002116342.8002
2005	26133453550.553413
2006	27540548237.36043
2007	32821584043.088734
2008	38610119607.056244
2009	37997607004.418335
2010	36917963812.26674
2011	39767842818.12265
2012	36257079358.8879
2013	36668469145.42951
2014	36934040883.93634
2015	31397275376.15467
2016	32695185009.52187
2017	34494988694.43065
2018	38059129978.84468
2019	38493103032.74503
2020	38153570453.53318
2021	44782947933.487656
2022	44119199694.31924
2023	49476276810.28715