Year	current US$
2007	4229296201.0000005
2008	7292700364
2009	7798685148
2010	9586501374
2011	9697318492
2012	10726760935
2013	13659496464
2014	16755598743
2015	16500616953
2016	16886379579.999998
2017	18835624933
2018	21760894443
2019	19829127576
2020	19966820540
2021	23834306356
2022	28268826995