Year	current US$
2007	3502508487
2008	3575390480
2009	1617931044
2010	1498646761
2011	1830256000
2012	1919330034
2013	2135760018.0000002
2014	2314838370
2015	2095866079
2016	2457329616
2017	2816236027
2018	2977953216
2019	3594679150
2020	3370854682
2021	3561355842
2022	3746711414