Year	current US$
1992	354535792.2
1993	804801507.5
1994	1311643221
1995	1839994350
1996	2076727899.9999998
1997	2931400000
1998	3244119000
1999	3017584000
2000	3164538693
2001	3312931802
2002	3448313243
2003	4537807392
2004	5933190066
2005	7694518074
2006	9699934402
2007	11020273867
2008	12474572452
2009	9063991080
2010	11590142632
2011	16727944593
2012	16087002900
2013	16315811464
2014	16042414655
2015	12836110066
2016	13170831611
2017	14558461591
2018	17016890836.999998
2019	16110209348
2020	16380442337