Year	current US$
2000	205.79788448
2001	197.99937327
2002	205.67133683
2003	245.70196661
2004	271.87975089
2005	344.45904703
2006	388.1820132
2007	430.40799168
2008	421.91309746
2009	381.62659172
2010	474.63959914
2011	526.62220978
2012	548.80313374
2013	587.37005886
2014	653.62395943
2015	652.92798811
2016	683.84622321
2017	742.56142183
2018	826.73586525
2019	823.78654117
2020	767.65181268
2021	948.75223893
2022	876.20356736