Year	current international $
2000	27.41688697828435
2001	30.522595312156508
2002	30.094334848264804
2003	32.21540253322187
2004	33.71264218680443
2005	34.605027639067075
2006	37.68593874451681
2007	40.46156738084739
2008	40.20241137809425
2009	38.69380237700449
2010	39.674651013533826
2011	40.13312386006142
2012	39.56291468679491
2013	45.08553990766684
2014	41.17780913609745
2015	43.74379171472899
2016	45.75075791817518
2017	41.93535094673708
2018	38.083735534276585
2019	38.967787140908655
2020	34.760791297167906
2021	35.12550034045048