Year	current international $
2000	41.2454905780861
2001	39.5409130025034
2002	39.0190475252759
2003	41.798159879499
2004	39.1867257708318
2005	39.3623136469974
2006	40.2568536121146
2007	41.6697439084166
2008	42.8057545334174
2009	42.3719059511647
2010	43.9244787992008
2011	47.4349938860771
2012	48.3823608687037
2013	49.1678750670942
2014	47.1205238835713
2015	56.7024593460503
2016	59.3281233300584
2017	65.601943421091
2018	66.3246017016201
2019	59.8307500306211
2020	57.1740920390604
2021	57.8927409867531