Year	current international $
2000	158.169995367608
2001	159.260429051098
2002	173.316216428533
2003	179.763008010188
2004	193.52276136803
2005	213.36997041676
2006	240.101135991077
2007	282.813305434968
2008	291.986717516016
2009	315.27939195793
2010	332.093797833457
2011	379.662983842579
2012	394.576064521884
2013	425.788816972225
2014	439.382838319826
2015	457.867502021417
2016	461.293144249826
2017	526.656199808167
2018	621.446185497671
2019	655.160010384085
2020	1070.33185543373
2021	1133.61940290928