Year	current international $
2000	12.2401430953504
2001	12.8498332219351
2002	12.2571628931157
2003	12.1402592018973
2004	15.0752925993829
2005	15.6450479470545
2006	18.5480626097062
2007	20.0521459463109
2008	21.4606357383909
2009	25.4631079095161
2010	25.6417075809569
2011	27.4451006280912
2012	27.9032635532404
2013	37.6234924764606
2014	35.9220761424946
2015	39.9499753786133
2016	39.7825221136063
2017	46.3652577213766
2018	44.4772488803943
2019	49.5809043489943
2020	55.1162346171444
2021	59.7067321361314