Year	current US$
2002	65000000
2003	106000000
2004	96000000
2005	138000000
2006	145000000
2007	182000000
2008	213000000
2009	217000000
2010	135000000
2011	171000000
2012	224000000
2013	228000000
2014	225000000
2015	202000000
2016	114000000
2017	164000000
2018	331000000
2019	324000000
2020	113000000