Year current US$ 2004 823756829497.9568 2005 950770620421.2656 2006 1156058145154.3372 2007 1457896953036.774 2008 1835170483083.4355 2009 1954497406444.183 2010 2340638078892.9917 2011 2892416106847.3853 2012 3183711508104.638 2013 3437034891608.3374 2014 3689507030361.145 2015 3689847721292.142 2016 3660736992727.4204 2017 4008721682145.972 2018 4451363419376.678 2019 4437980663681.992 2020 4448902202068.559 2021 5547297887036.787 2022 5507059814635.954 2023 5334054051313.994