Year	current international $
2000	9.46882266833242
2001	25.8706043650734
2002	12.2031665547638
2003	15.5065031689507
2004	27.9137072985122
2005	29.3320490197584
2006	52.1859311539736
2007	40.7344355710035
2008	26.4000061255271
2009	17.7748369089402
2010	23.5075111621909
2011	21.4787649692125
2012	22.7015043864925
2013	26.9234074986182
2014	24.5405021666934
2015	16.9046654116886
2016	16.5105915264071
2017	39.1470276418273
2018	22.0485908754097
2019	29.8893655802569
2020	25.3829943543505
2021	97.4180394047942