Year	current US$
1990	2398072840.24383
1991	2632045411.05344
1992	2784614280.60878
1993	3018380778.70932
1994	3258220092.73455
1995	3688481434.81102
1996	4176859311.28246
1997	4657727745.68581
1998	4974653761.48708
1999	5342343219.43337
2000	5822220603.29467
2001	6198156851.68261
2002	6403741828.34935
2003	6531014076.55877
2004	7247951190.11638
2005	7717181270.0815
2006	8230673887.85277
2007	9079565098.51784
2008	10027384807.5157
2009	9666116944.61778
2010	11372139866.1751
2011	12477512520.6176
2012	14112948489.7918
2013	15737290826.1582
2014	17226632509.8911
2015	16876639823.6001
2016	16055337206.8509
2017	17080528336.3663
2018	17003183439.0591
2019	17710284795.2684
2020	17676052829.8101
2021	19805847888.1779