Year	constant 2015 US$
2013	3254665297.6658177
2014	3478995322.5354238
2015	3525582232.8256087
2016	2639589493.1727514
2017	4026061741.822032
2018	4423070454.365389
2019	4830650786.378867
2020	3395720888.598232
2021	4398899256.162222
2022	3848809295.8943863
2023	4170743719.209554