Year	current international $
2002	12.0021429705062
2003	5.73662589286968
2004	9.33623544789137
2005	16.6354086960095
2006	21.8730741858512
2007	18.1611436869002
2008	25.4415696170391
2009	33.4776292330825
2010	23.1007018280412
2011	31.1454452748017
2012	32.8975327735791
2013	40.8110381853918
2014	44.4648190238265
2015	35.477015141103
2016	45.3210526878096
2017	51.3747980744969
2018	59.1614334924666
2019	63.7540271035991
2020	52.0257187934447
2021	70.3515861125845