Year	current US$
2000	100.45060849081358
2001	103.73968074622091
2002	109.65376111320433
2003	117.18911073189336
2004	121.98058958855661
2005	132.79583296705403
2006	145.80565500665568
2007	159.50214847957704
2008	170.76428677513397
2009	167.6489751859154
2010	174.4350166060529
2011	187.05863993774685
2012	197.72943557378824
2013	201.3897384277152
2014	204.4959648680213
2015	204.2980478412335
2016	198.5062925721474
2017	207.13625069913675
2018	213.0542896033412
2019	218.08133428135147
2020	191.04213670332797
2021	211.60594428906953