Year	current international $
2013	3717943843.2784467
2014	4065780221.094056
2015	4486898402.590466
2016	4661848367.2693815
2017	4916999872.634314
2018	5409912231.52326
2019	5698011260.144226
2020	5995723399.382502
2021	6552815392.269617
2022	7541802486.849987
2023	8003300980.062048