Year	constant 2021 international $
2006	3822.179329987198
2007	3887.274264292359
2008	4142.104882296797
2009	4237.039981783495
2010	4405.076015840255
2011	4830.327358505432
2012	5039.79600833329
2013	5408.044475351551
2014	5300.67800923944
2015	5412.75671905321
2016	5413.128770539658
2017	5670.971585665974
2018	5917.655498663693
2019	6196.924787563902
2020	6415.395686006741
2021	6343.7651645688165
2022	6545.654547487