Year	current US$
2002	3339513539.40303
2003	6471164668.70007
2004	8212187178.78886
2005	7874509745.946871
2006	8715891390.95106
2007	9967684004.78
2008	13439901688.67
2009	14023252047.5164
2010	13010391331.15763
2011	12128970091.4391
2012	11481679844.2648
2013	12887534740.125
2014	13175360909.551401
2015	13453781092.887001
2016	13152932213.166
2017	13823773941.8732
2018	14243250997.49835
2019	13129328435.193007
2020	4747905800.682219
2021	4882907804.282861
2022	6533045975.432561
2023	6605906924.763721