Year	current US$
2005	660000000
2006	414000000
2007	502000000
2008	613000000
2009	574000000
2010	716000000
2011	595000000
2012	598000000
2013	531000000
2014	679000000
2015	762000000
2016	556000000
2017	632000000
2018	542000000
2019	670000000
2020	272000000
