Year	constant 2015 US$
2007	25957595014.70979
2008	28869882274.38301
2009	28022438440.493256
2010	30501972980.31033
2011	40275136455.541046
2012	37436554269.4671
2013	41619443827.66722
2014	40866892971.327354
2015	31130218826.707657
2016	30880336847.997986
2017	30764294722.149933
2018	36209022102.10208
2019	45326675455.59151
2020	41014150003.234604
2021	42920882149.32686