Year	current international $
2000	25.2607280885038
2001	29.7333360451378
2002	27.9166507204002
2003	33.8065774816492
2004	37.3232516747474
2005	38.3767894934648
2006	43.5069932838366
2007	33.5441445648145
2008	36.3199202093504
2009	37.078440467939
2010	31.1831224992592
2011	35.3623088186426
2012	33.8292462516397
2013	32.5487539926568
2014	31.0199563756252
2015	32.5332866205531
2016	33.3908892614974
2017	32.9378067494461
2018	38.5956924756831
2019	37.8239450307118
2020	61.461607173915
2021	43.1999480848364