Year	current US$
2002	1048081106.8229605
2003	1100156861.5163832
2004	1206194368.3419755
2005	1464976531.1106653
2006	1626402369.7045023
2007	2205273648.6643586
2008	2487613334.883645
2009	1977340334.269921
2010	2479390064.94543
2011	3093474520.404935
2012	3694498830.952564
2013	3520700739.7951827
2014	3787262999.986608
2015	3916953317.4513183
2016	4002300466.483429
2017	4737692188.665318
2018	5325686518.528124
2019	4978955992.447527
2020	3105855482.839069
2021	3869082115.1949053
2022	4084242314.057011