Year	current US$
1993	3635501303.44009
1994	4489496650.43803
1995	6318454038.93279
1996	6811665505.72401
1997	4060632594.36294
1998	5726907928.61444
1999	4377667051.94936
2000	4216251028.37831
2001	4894755714.50477
2002	4716407895.70322
2003	4227996323.852
2004	6564853355.08487
2005	9575572497.13322
2006	10811964291.7744
2007	16183729956.5573
2008	17577050263.5608
2009	5116900292.8567
2010	3605477608.38181
2011	3359116243.86449
2012	5771267252.48758
2013	5597734822.8549
2014	8543758991.94596
2015	12031282534.8711
2016	11280143686.8002
2017	15894169355.5065
2018	17689377489.5115
2019	17772009235.7573
2020	14520119316.3939
2021	19283162688.9891