Year	current US$
1992	1511363797
1993	4112049850.0000005
1994	9531068926
1995	15104274462
1996	14400700000
1997	14233700000
1998	12637100000
1999	11582500000
2000	14520300002
2001	16193379960
2002	17867841798
2003	24088040827
2004	32346616371
2005	33665116379
2006	38080539634
2007	48867094989
2008	66288360208
2009	39824669272
2010	51432541829
2011	68411563878.99999
2012	68684883170.99999
2013	63308298097
2014	53911268088
2015	38135100685
2016	36288546776
2017	42345696781
2018	47185677063
2019	49897386686
2020	49214414790