Year	current US$
2002	200000000
2003	243000000
2004	402000000
2005	198000000
2006	109000000
2007	127000000
2008	145000000
2009	81000000
2010	102000000
2011	87000000
2012	84000000
2013	61000000
2014	40000000
2015	47000000
2016	42000000
2017	68000000
2018	102000000
2019	145000000
2020	65000000