Year current US$ 2005 3583355427.560453 2006 3652042752.3871655 2007 5942729602.801613 2008 7794030128.718887 2009 7193785588.442528 2010 9610804662.079933 2011 8389598996.942222 2012 10023358088.250782 2013 8612715607.169605 2014 8361396882.958679 2015 5566862109.010571 2016 4629853195.02921 2017 5315346803.425604 2018 5766764651.868569 2019 4971586017.960717 2020 3668867869.7113214 2021 3889425323.4954047 2022 4660860577.140748 2023 4764454541.29554