Year	current US$
2000	40.38047943
2001	41.26636414
2002	45.98828769
2003	57.71366313
2004	67.98501975
2005	71.90443233
2006	69.11902028
2007	80.5184564
2008	92.1590336
2009	96.01652035
2010	100.41720791
2011	102.70413243
2012	96.09345568
2013	99.57935411
2014	113.51015879
2015	97.63084282
2016	97.59800301
2017	99.88104466
2018	104.51275472
2019	104.08644979
2020	107.60020387
2021	127.19197155