Year	current international $
2000	686.22161326249
2001	731.476369533638
2002	776.586831305805
2003	782.143081166001
2004	813.350122643459
2005	860.774580318829
2006	974.614582165834
2007	1023.41028326433
2008	1088.71717504164
2009	1154.04534658817
2010	1197.96307090402
2011	1254.69863182846
2012	1272.05942093346
2013	1343.05110189867
2014	1374.14998230767
2015	1295.0449369511
2016	1228.25935156914
2017	1227.8865835935
2018	1265.47671946198
2019	1395.4309785647
2020	1361.27001466882
2021	1543.45656722964