Year	current international $
2000	33.7892569680642
2001	36.4837223231595
2002	36.5407266286261
2003	40.833120098378
2004	42.8694388716803
2005	42.6754148027918
2006	45.0894274797675
2007	48.5081038107092
2008	55.0991607743356
2009	61.5711362194296
2010	76.3179558043876
2011	90.4711180541252
2012	95.6118854678326
2013	88.4040578922189
2014	80.6197931403328
2015	78.8827612290007
2016	76.0847539684104
2017	70.2942262493916
2018	70.5377806364935
2019	69.5538593785923
2020	62.5862857688822
2021	72.6617581373492