Year	current US$
2007	1491142662
2008	1346411152
2009	1006410348
2010	1185075373
2011	1315205837
2012	1272189915
2013	1016402130
2014	856958426
2015	634073632
2016	582916883
2017	650667569
2018	760310020
2019	754560019
2020	844223002
2021	763239121
2022	206522669