Year	current international $
2000	535.158307142869
2001	568.974751139185
2002	627.981299817355
2003	612.411497443595
2004	629.174489560102
2005	535.883214190681
2006	501.318342309534
2007	449.636567388093
2008	374.056990135318
2009	524.023945957544
2010	479.366590241339
2011	424.873895398827
2012	310.563319421112
2013	227.626588247455
2014	196.136837468766
2015	190.939781449191
2016	189.47220037368
2017	203.763603467045
2018	186.886247873082
2019	201.338191320058
2020	211.497590350935
2021	193.584656037472