Year	current international $
2000	17.4466990839319
2001	17.1326913654574
2002	20.7137905696643
2003	19.2975061931305
2004	27.9695111557508
2005	22.3946633083998
2006	15.6026961937489
2007	16.4577376968569
2008	12.9785832888728
2009	15.3054034583979
2010	15.6142391878138
2011	14.8987093871489
2012	16.4715021275075
2013	18.0841647864401
2014	20.4878329044942
2015	17.4725966664431
2016	13.8050507024397
2017	11.08797014241
2018	10.2202666911638
2019	11.0540373113841
2020	14.6041074406337
2021	14.0721593327173