Year	current international $
2000	7.751077338309439
2001	6.95520859325218
2002	7.9110937696419406
2003	11.191217603873666
2004	13.478431614669644
2005	18.17494045615826
2006	19.535287082140307
2007	20.38492356737804
2008	21.36162760174477
2009	23.878911801550522
2010	25.231973964993497
2011	27.245392854954773
2012	25.32068758798737
2013	28.43918601527986
2014	25.11991021423126
2015	24.75213197806292
2016	24.982002926789292
2017	24.663336783451985
2018	24.627594054021255
2019	26.66843758002501
2020	25.563359716903665
2021	29.12681347463011