Year	current international $
2000	43.4766888681646
2001	44.8048922862669
2002	50.3161391814892
2003	57.4965240266145
2004	65.2236554940396
2005	44.1926889912732
2006	44.495414503267
2007	48.2638232008114
2008	49.5503195470972
2009	57.3149122710741
2010	63.6173989228498
2011	68.7981522099888
2012	73.5019931691077
2013	77.890973375444
2014	71.8893383067046
2015	75.7804139150423
2016	76.5846122967859
2017	77.8745146412615
2018	83.0951861749819
2019	91.9423326507037
2020	91.5242521501795
2021	93.181854973691