Year current US$ 2005 1148532786.5324936 2006 2029166358.2844656 2007 2562722516.9780173 2008 3169839660.2273355 2009 3457614081.560604 2010 3820147372.687196 2011 4348803892.53379 2012 4509541511.166198 2013 5678967676.233744 2014 6063284164.308001 2015 5152384518.616207 2016 5380740444.047261 2017 5731427388.039492 2018 6337287688.6722355 2019 6394020451.702962 2020 6016784581.133101 2021 6471476098.594546 2022 6025699630.7621355 2023 6625052765.984456