Year	current international $
2000	2.0020176957614586
2001	2.2358154501245857
2002	2.621846277760361
2003	2.718984094888564
2004	2.636563228913227
2005	2.9349219018110526
2006	3.02795953852825
2007	2.953824712783413
2008	3.539464403767801
2009	2.7941683333153953
2010	2.6100917741502525
2011	2.9714716042279785
2012	3.576514816729589
2013	3.3803855660620017
2014	3.714536522387141
2015	3.1681200218650907
2016	3.4725239266079875
2017	3.8134563578154177
2018	4.242826907815134
2019	4.460695849057503
2020	4.126861580655824
2021	9.203807913310033