Year	current US$
2003	3418000000
2007	6907000000
2008	6775000000
2009	6744000000
2010	7536000000
2011	9317000000
2012	8400000000
2013	8690000000
2014	9263000000
2015	11183000000
2016	13438000000
2017	15020000000
2018	16974000000
2019	19849000000
2020	5960000000
