Year	current US$
2000	138.99897766
2001	144.17262268
2002	153.85899353
2003	105.31115723
2004	105.84014893
2005	169.96865845
2006	162.94297791
2007	191.22145081
2008	230.50578308
2009	238.2713623
2010	271.26663208
2011	295.19439697
2012	305.4364624
2013	303.37979126
2014	313.45751953
2015	322.94607544
2016	329.10879517
2017	337.60925293
2018	327.90109253
2019	346.50790405
2020	354.09362793
2021	416.89974976
