Year	current international $
2000	1.47774006211583
2001	1.46191756917345
2002	1.5487253786824
2003	3.09100297413555
2004	3.56713973593655
2005	3.94278039614159
2006	4.51952408623894
2007	5.68565947826994
2008	11.1975327453107
2009	10.9787000934172
2010	10.6554597086185
2011	9.55952972637539
2012	8.08695267667855
2013	10.4801944051326
2014	13.1845635170548
2015	13.6807905207917
2016	17.597886100722
2017	18.0693555887668
2018	12.3719230845088
2019	14.7890027593975
2020	16.7203227612981
2021	17.1079210590086