Year	current US$
2000	1054.91210938
2001	1054.32800293
2002	1250.92895508
2003	1611.79040527
2004	1983.18701172
2005	2296.60766602
2006	2305.14648438
2007	2706.79956055
2008	2851.11914063
2009	2713.81420898
2010	3233.77856445
2011	3656.73071289
2012	3856.1730957
2013	4014.97460938
2014	4192.74365234
2015	3600.95629883
2016	3739.40136719
2017	3903.68041992
2018	3957.86083984
2019	4085.78808594
2020	4223.22167969
2021	4906.07080078