Year	current US$
2008	2873.385255778052
2009	2790.536618200438
2010	2981.178656522448
2011	3524.4148736811876
2012	3410.693254648084
2013	3704.5628029765985
2014	3902.5308408421774
2015	3520.7820746247803
2016	3759.4728551545395
2017	4009.3538108854
2018	4384.188680459309
2019	4416.029252678418
2020	4310.934002005702
2021	5270.5506400306085
2022	5290.9773969647395
2023	5943.12571420876