Year	current US$
1998	854261160.7142857
1999	828950327.3532612
2000	984293043.8115647
2001	1159869245.92513
2002	1284685050.524129
2003	1707710053.1493838
2004	2073234417.6806555
2005	2257174480.7859716
2006	2721903148.914816
2007	3680711743.772242
2008	4545674527.610957
2009	4159330369.5470963
2010	4142983843.491195
2011	4544428421.495127
2012	4087526241.812683
2013	4465772400.37453
2014	4593853290.963004
2015	4054730077.577178
2016	4376930578.323949
2017	4856599480.79882
2018	5506942238.356679
2019	5542054181.126162
2020	4769996866.007579
2021	5861427505.124932
2022	6229801580.791574
2023	7404541964.5077915