Year	constant 2015 US$
2010	16708189212.338577
2011	8519175932.412442
2012	14994925899.296064
2013	12840683038.525932
2014	13535489874.315601
2015	8468082333.606041
2016	9862447176.245148
2017	11050998247.982672
2018	12533604367.446413
2019	3869869206.182823
2020	3494355985.4799724
2021	12410629137.351156
2022	13093630086.235977
2023	10522745535.900414