Year	current international $
2000	10.4216653556223
2001	11.4471299181005
2002	12.8529413873014
2003	14.5841867019475
2004	19.181348850122
2005	18.6800016448055
2006	36.1121523854746
2007	39.2238421888242
2008	39.2603277383739
2009	38.3720602774618
2010	40.9711820979147
2011	37.7694274001228
2012	35.0202702956363
2013	35.1547137886205
2014	33.6473050941779
2015	32.1353900307885
2016	31.0186496890296
2017	36.2505089921149
2018	41.5152804215379
2019	38.7781799959296
2020	36.5748853274212
2021	43.6711261729623