Year	current international $
2000	175.948049984255
2001	173.188230840252
2002	168.775435406156
2003	156.076205288752
2004	157.730862170826
2005	147.916843903991
2006	144.602990835695
2007	141.143913278584
2008	149.217207487308
2009	150.186518814477
2010	155.698406588199
2011	144.112878837678
2012	157.327828217649
2013	142.881038604231
2014	158.854204759077
2015	147.465866801109
2016	155.877557295156
2017	157.023118864616
2018	158.062116562878
2019	175.763594311985
2020	200.18577811242
2021	187.889772816272