Year	current international $
2000	75.7738417521669
2001	80.230827511757
2002	77.5759501394769
2003	76.0128539218253
2004	81.5558867844669
2005	80.5101567557985
2006	74.4585056991194
2007	67.8865973182778
2008	55.4388002598377
2009	52.5337706491069
2010	46.3086843461404
2011	44.5918845478139
2012	39.0152995401473
2013	43.6073594689509
2014	43.0845204919531
2015	35.2522024368952
2016	39.2485513930369
2017	40.4980896020829
2018	41.1633224316829
2019	41.576446240288
2020	42.4630226551539
2021	46.6084825015748