Year	current international $
2000	0.404777086771463
2001	0.49121211465066
2002	0.836259685236293
2003	1.08517407958074
2004	2.68624117526026
2005	3.11900393384342
2006	1.80153600050204
2007	2.02585910233974
2008	3.79898349617965
2009	2.15043001970946
2010	0.799418920218554
2011	4.24177580375212
2012	3.10903190817019
2013	2.68770538488026
2014	2.97699200312901
2015	1.51387216130148
2016	2.66931803337829
2017	1.89382123252857
2018	2.18717786535289
2019	3.3754605916662
2020	1.44367641528983
2021	0.379152398381657