Year	current US$
2000	685.39554509
2001	703.67536651
2002	759.99166567
2003	807.76758824
2004	845.09785296
2005	890.99815831
2006	927.26321941
2007	969.78569744
2008	981.57654036
2009	961.57091188
2010	968.78453899
2011	988.27190934
2012	1020.67405185
2013	1036.28939623
2014	1058.30804163
2015	1089.01865233
2016	1118.35096228
2017	1130.68664557
2018	1164.60193191
2019	1205.28419713
2020	1167.73456261
2021	1285.33004727