Year	current international $
2000	2.616959591336325
2001	3.140614626895319
2002	3.261688979913251
2003	4.116863232733147
2004	5.59566511259883
2005	6.021100327655472
2006	5.446870476738139
2007	5.7329933747137405
2008	6.333689048833134
2009	6.068040823852013
2010	6.058692339019242
2011	6.366373794090406
2012	6.574037481534785
2013	6.589125537518491
2014	6.735475805137011
2015	5.6366772087161126
2016	5.722142870787088
2017	5.719356912862057
2018	5.5606649690579415
2019	5.705341352167411
2020	5.587619838311147
2021	11.056300322608404
