Year	current international $
2000	2.05280147581778
2001	2.28454484752243
2002	2.73283427310317
2003	2.70527399418551
2004	1.52079965210711
2005	1.73058521516271
2006	1.17486721150169
2007	1.1764559696019
2008	1.81699453367908
2009	1.17560487218516
2010	7.47850471514228
2011	3.04153115623788
2012	1.70355769174118
2013	2.67373068075152
2014	8.27695910477062
2015	1.77157053707065
2016	1.74383549018348
2017	1.26401118061096
2018	2.08590089586136
2019	2.3024888933513
2020	7.11974496514255
2021	33.4130289018663