Year	current US$
2000	353162
2001	519648
2002	1213690
2003	2076823
2004	579559
2005	910996
2006	1280520
2007	1890080
2008	1086008
2009	608409
2010	1572963
2011	903454
2012	10489029
2013	1774510
2014	7962062
2015	2618275
2016	1195900
2017	1319999
2018	15206909
2019	3083215
2020	4534862