Year	current international $
2000	35.01569485625612
2001	36.244577353100794
2002	37.76155048184498
2003	47.28137517529225
2004	47.62660210306056
2005	52.11782006750765
2006	57.89408433974076
2007	60.92672778160697
2008	63.182254214495
2009	65.09748968950977
2010	64.25041895943876
2011	64.59046642335858
2012	66.14634727535812
2013	72.5489255014869
2014	74.31083136697059
2015	78.26622380007913
2016	81.51551457146813
2017	82.0945573222717
2018	80.93661423142764
2019	83.43243882038362
2020	85.6228701972032
2021	96.80960433960148