Year	current US$
2000	106.17922993
2001	105.63034093
2002	110.88276661
2003	113.68386026
2004	118.67999498
2005	134.0276335
2006	149.98090578
2007	161.43694103
2008	170.07856451
2009	184.39326446
2010	192.0205669
2011	196.73177083
2012	203.99256659
2013	221.92928589
2014	231.40316363
2015	267.8894116
2016	292.0534121
2017	300.59903512
2018	298.5532419
2019	284.18406664
2020	308.78922769
2021	306.40368398