Year	current international $
2000	35.760748444268366
2001	38.111018623972164
2002	38.186229017784534
2003	51.816749122912675
2004	50.36514809843081
2005	51.71005968401738
2006	54.944926083559025
2007	56.50386560617234
2008	57.541137693058786
2009	59.501914749226835
2010	57.3386042848484
2011	58.70713422071705
2012	58.12223854656724
2013	63.030247804419034
2014	62.29723845714765
2015	64.6351094256091
2016	66.44654180696878
2017	65.58918214866765
2018	58.71301316202798
2019	57.90772651625802
2020	58.63858407005372
2021	65.94886684219064