Year	current international $
2003	0.5585985919863463
2004	0.6638905389047084
2005	0.6498145737966295
2006	0.5499160171373885
2007	0.5473042844434758
2008	0.5647272197689339
2019	0.7088889838517393
2020	0.8818940400105989
2021	1.9925431898400885