Year	current international $
2000	2.9930840523977382
2001	3.23681155099762
2002	5.253422095047689
2003	4.599847877096861
2004	10.911007354761498
2005	5.033120806528015
2006	4.483530418250592
2007	4.026253446612937
2008	4.92089853364138
2009	5.2673061978011875
2010	6.012842745342815
2011	7.864050757237389
2012	6.8142497757156075
2013	5.357805364056683
2014	7.568866111903592
2015	6.557487607373943
2016	5.1964884148064465
2017	4.482328104565319
2018	4.548883807687558
2019	4.181521337983986
2020	3.635937910386876
2021	6.483366932014262