Year	current US$
2000	288.14460209
2001	288.26672677
2002	322.87482118
2003	404.83024577
2004	485.20682117
2005	502.42646739
2006	536.56663626
2007	602.95141097
2008	659.31689255
2009	649.64351052
2010	643.89480345
2011	705.58956051
2012	675.42345591
2013	679.46614075
2014	690.58899081
2015	605.26337745
2016	614.86353931
2017	654.91960471
2018	725.76898634
2019	737.50926012
2020	736.57224333
2021	805.80792414