Year	current international $
2000	22.9192936714181
2001	26.9416623147302
2002	22.9350951774587
2003	26.2518662383903
2004	20.6459003644158
2005	25.5276668420009
2006	20.2367867801964
2007	19.4419364114335
2008	18.3563243979891
2009	44.1594134122101
2010	24.0189137819352
2011	15.4334113608352
2012	20.9347480391779
2013	37.3566808995284
2014	39.8505344401589
2015	52.9269318998112
2016	52.0040025692961
2017	64.0759509741503
2018	67.1619679074784
2019	78.7619859152361
2020	63.339273469664
2021	61.3811691471401