Year	current US$
2000	667921772
2001	682212490
2002	969960017
2003	1403409098
2004	5388920069
2005	4384489836
2006	4058222875
2007	2565544460
2008	1257345279
2009	1510282587
2010	1402016674
2011	1575686342
2012	1721144409
2013	1943502975
2014	1508815879
2015	1478583074
2016	1552192020
2017	1825056260
2018	1871785998
2019	2296621020
2020	1748868713