Year	constant 2015 US$
2011	31600495277.584415
2012	34838385961.90433
2013	39025463574.23066
2014	44701541823.2368
2015	49659215179.8291
2016	57026727190.6005
2017	62989118188.91216
2018	69489681252.3479
2019	77259526558.98286
2020	83677701971.69154
2021	89078693933.51054