Year	current US$
2006	2893031947.9989
2007	-5379052292.55553
2008	-17533208778.213
2009	-32914883196.0893
2010	-27666007100.6922
2011	-36482954160.7692
2012	-24795952701.1171
2013	-18025917092.3879
2014	-15333902653.9429
2015	-11751243944.8108
2016	-11094432635.4476
2017	-12192865233.1589
2018	-11880142994.6291
2019	-9183459499.90068
2020	-16618593162.3806
2021	-8440299722.30568