Year	current US$
2007	2684224202
2008	3057611783
2009	3058494853
2010	4112137224
2011	5014184016
2012	6429509683
2013	8084024414
2014	8401804736
2015	7465163865
2016	7474378461
2017	8807954842
2018	8973335732
2019	8049032071
2020	7860065656
2021	8421816879.000001
2022	7897423538