Year	current international $
2000	43.9785064988255
2001	46.5114537507129
2002	45.522253708814
2003	48.6359964502811
2004	51.1064879480898
2005	54.4097471060994
2006	55.8746333869329
2007	59.1368290671163
2008	57.4716176233909
2009	56.2167532954617
2010	60.0706235718452
2011	61.4298128242177
2012	62.3478591580007
2013	67.7860830201389
2014	71.5557112766684
2015	74.7747311858493
2016	78.4440021374474
2017	61.8427566789461
2018	65.0898311482982
2019	74.3953051938099
2020	70.9645598372283
2021	77.8231445643375