Year	current international $
2000	22.4754911002572
2001	30.7935639737925
2002	29.9080782102293
2003	28.7723453082899
2004	40.163376617897
2005	42.9191114577167
2006	51.8581733629613
2007	55.9944594467867
2008	48.4030865166948
2009	57.1317907006435
2010	71.1168025171967
2011	65.0623460340891
2012	56.3119978309224
2013	60.0966245408208
2014	52.557478816633
2015	50.1425744322107
2016	54.1324211026321
2017	52.2004412045843
2018	55.2982609893244
2019	68.8218551230665
2020	80.4213471964415
2021	70.4981955313522