Year	current US$
2005	4301417605.714865
2006	4500446929.15186
2007	5061876322.510267
2008	5462941267.653358
2009	5024686759.62411
2010	4682380564.383974
2011	4817708600.646834
2012	4391022774.436259
2013	4627122731.2841
2014	4685612200.747158
2015	4038548947.770366
2016	4169689975.8174844
2017	4441250874.086998
2018	4663263927.291053
2019	4588693982.060089