Year	constant 2010 US$
2008	2779615389.21527
2009	2910801766.29147
2010	3030332389.00344
2011	2710614346.14952
2012	3675765794.48899
2013	3044275892.36597
2014	3353891602.8782
2015	3533436136.92818
2016	3935893543.29543
2017	4144816802.12679
2018	4286677149.46531