Year	current US$
2013	2756167144.569297
2014	1829751034.4866393
2015	1879408908.9077826
2016	2749372601.9997635
2017	2922016628.8733463
2018	2539346622.5150657
2019	2702855450.3969703
2020	2917118503.1594462
2021	2640133948.7173715
2022	3528185111.4949837
2023	4282583734.0550632