Year	current international $
2000	2.3854116879489
2001	2.23120304635991
2002	2.61157017546995
2003	1.56309087807446
2004	4.48748745275828
2005	0.59364979514496
2006	1.01684396461811
2007	0.839199873140167
2008	0.569644197743806
2009	1.65488128118002
2010	2.7854060460074
2011	3.95840100934696
2012	1.44504317594329
2013	0.841965431589295
2014	1.81514236308984
2015	1.04885643575284
2016	0.968034971109774
2017	0.908247514777334
2018	1.21042771792962
2019	2.14668378408844
2020	2.21824764154827
2021	2.12163934587715