Year	current US$
2000	397.06680357924733
2001	396.888034387664
2002	426.4136691696627
2003	488.7469714558938
2004	535.2481668421984
2005	556.9381431702461
2006	589.9545264736216
2007	634.4310387905962
2008	677.4219234435513
2009	663.8985378421453
2010	683.2058269714495
2011	731.2986028132552
2012	734.0433233900293
2013	735.0381586386164
2014	747.0930687355527
2015	709.715498883648
2016	725.8481517057965
2017	745.7836180161744
2018	784.7990401904575
2019	794.7117680184033
2020	772.5549505631745
2021	868.520980488782