Year	current international $
2000	0.537242083219924
2001	1.19399972562282
2002	3.52396614931609
2003	4.84710252571114
2004	2.72159877491872
2005	4.19881783627519
2006	3.67785376308072
2007	4.64117347025309
2008	8.25517031534123
2009	5.94153616779178
2010	5.38785314857919
2011	7.67981684631455
2012	4.77954483170273
2013	7.73158962344588
2014	9.07969899894155
2015	5.44694476472233
2016	7.62388292537437
2017	7.46164128018794
2018	10.2627172969614
2019	11.1889526933455
2020	9.83511898139406
2021	17.277696454992