Year	current US$
2000	1005.28399658
2001	1045.05065918
2002	1174.5793457
2003	1640.91772461
2004	1924.27087402
2005	2060.3215332
2006	2242.15869141
2007	2606.27783203
2008	2995.18603516
2009	2937.71826172
2010	2789.63720703
2011	2908.91967773
2012	2590.2253418
2013	2629.46679688
2014	2679.4765625
2015	2349.09375
2016	2376.60107422
2017	2524.68481445
2018	2741.38256836
2019	2716.83349609
2020	2899.01879883
2021	3234.29296875