Year constant 2021 international $ 2006 20595895191.297607 2007 21878410491.7106 2008 21206155903.13328 2009 21168356282.072403 2010 20725146734.966503 2011 21556230227.6871 2012 23278857302.178707 2013 25440243301.280388 2014 24959521637.11904 2015 26706643465.787144 2016 28553673060.166866 2017 28835857045.865208 2018 29847833514.002605 2019 32760150731.918007 2020 34212952914.292587 2021 35399469040.70444 2022 37488110176.12275 2023 36237618875.425674