Year	constant 2015 US$
2007	4666501847.575554
2008	4706190478.19011
2009	6684076931.039919
2010	7444330566.180335
2011	7166915589.687315
2012	8190537047.757766
2013	8673969490.691559
2014	9561754239.050915
2015	8459709989.72586
2016	7749982069.039938
2017	6895291346.431063
2018	7512821461.170238
2019	7719616377.831857
2020	6445113291.205602
2021	7113548150.777459