Year	current US$
2013	1192487100.5677438
2014	1343673510.7274885
2015	1492710484.4109588
2016	1599214499.1306598
2017	1723026541.601724
2018	1836120428.0867202
2019	2020451169.5297685
2020	2260007575.9195595
2021	2563378344.1461616
2022	2516508622.5038123
2023	2482447899.797998