Year	current US$
2007	3856932141
2008	4467054952
2009	3840218927
2010	4554403968
2011	5598902061
2012	5466439333
2013	5341235868
2014	5455317567
2015	5089628319
2016	5375124772
2017	4900487730
2018	5240396085
2019	6334694580
2020	5589428537
2021	6309320488
2022	7759351128