Year	current US$
2000	150.63317175756492
2001	147.08947188806536
2002	127.8909788963056
2003	134.4905429446072
2004	150.34985532129127
2005	186.19611825284505
2006	213.49375583191355
2007	251.56085022182958
2008	281.4581674699973
2009	270.0901826942649
2010	315.9071498416717
2011	355.4668281149201
2012	354.79257066593243
2013	361.9658832056491
2014	364.5535211461622
2015	317.0088926491007
2016	308.660437187315
2017	356.4825241538938
2018	333.97752135167326
2019	327.4113348157062
2020	272.8115620602017
2021	303.68815386655024