Year	current international $
2000	30.978774381591645
2001	33.26428292579222
2002	31.67718781000133
2003	39.07395342849881
2004	42.866022878840354
2005	45.408298918228915
2006	50.18288015952607
2007	53.7589187239791
2008	55.56194717449784
2009	59.896070203165436
2010	59.042026824309595
2011	60.87127507388959
2012	62.15322906853752
2013	63.5476158114175
2014	66.04730477370481
2015	68.25809679824037
2016	69.02750611310516
2017	68.70173197787695
2018	69.13704964352631
2019	72.58909248823898
2020	77.22488063815872
2021	78.81716750990614