Year	current international $
2000	27.6522504568232
2001	28.1851587098401
2002	28.7930065354456
2003	30.1973727790677
2004	30.3275820012667
2005	30.3496555360809
2006	31.5242281642438
2007	34.9583580569943
2008	35.408550238738
2009	38.3815408539136
2010	41.7589189702613
2011	45.1767915184017
2012	46.1478412261727
2013	48.1747053933182
2014	51.0987645679847
2015	52.6627158026896
2016	79.9111107217615
2017	78.7408507750926
2018	81.4736657003701
2019	82.2079429927965
2020	84.6748107948892
2021	89.619367209612