Year	current US$
2000	109.2373742359631
2001	110.33065321516037
2002	98.81899266822059
2003	103.42937159931452
2004	114.91140915822005
2005	139.52911407829012
2006	156.89752321411723
2007	178.35148353899942
2008	191.06920324260605
2009	180.8004373974111
2010	203.08192282370115
2011	225.3270803482448
2012	226.38011492446617
2013	228.91136455816533
2014	229.26071838294806
2015	193.49727629332412
2016	184.50000157679256
2017	200.34174746322796
2018	192.21690431840528
2019	186.8443928798693
2020	157.36807483727125
2021	180.17727795357763