Year	current US$
2007	327000000
2008	378000000
2009	361000000
2010	385000000
2011	453000000
2012	543000000
2013	583000000
2014	635000000
2015	607000000
2016	573000000
2017	551000000
2018	593000000
2019	703000000
2020	281000000