Year	current US$
2001	412121724.14639217
2002	430846621.2941331
2003	530098921.3219926
2004	524276618.0763537
2005	529727017.34083253
2006	485517914.63138896
2007	806054787.80749
2008	785580645.2717344
2009	931648155.3262122
2010	1215822373.6636622
2011	1486574669.609753
2012	1416115154.1712916
2013	1442900508.4644487
2014	1512595516.303525
2015	1219047587.5868073
2016	1156437997.6386151
2017	987919257.2892678
2018	1065806649.3163159
2019	1062467711.4719652
2020	1054497194.2390339
2021	891835886.0318778
2022	802503133.6085982
2023	999274615.712736