Year	current US$
2000	271953471.691989
2001	279831344.922888
2002	344751884.336441
2003	470646449.638663
2004	536566418.385094
2005	616360634.000745
2006	710028320.223311
2007	880034457.979742
2008	1236505756.55486
2009	991709530.425119
2010	1003123784.88718
2011	1050754100.68629
2012	959781077.663205
2013	1053725028.21122
2014	1061853005.55248
2015	1078988276.90169
2016	1153935733.25259
2017	1214870726.11682
2018	1416154817.49116
2019	1451874222.63673
2020	1476731312.46529
2021	1739838212.35032