Year	constant 2015 US$
2006	2165345630.248519
2007	2742400815.7090797
2008	3409353096.0857177
2009	3475695974.5994954
2010	3986208558.7647495
2011	4354574278.128911
2012	4806179953.993992
2013	5282122525.559538
2014	5315411527.714821
2015	5158458485.034916
2016	4934960975.264363
2017	4764020811.910871
2018	4994597463.70355
2019	5004502449.18616
2020	4665083399.315562
2021	4842534114.353875
2022	5127275159.951008
2023	5263402151.077414