Year current US$ 2005 32300000 2006 31500000 2007 26400000 2008 37400000 2009 30900000 2010 57200000 2011 812600000 2012 669745991.90705 2013 920031731.820626 2014 450677740.612592 2015 851177411.04 2016 450360618.476024 2017 532463104.850146 2018 913820460.848003 2019 1004481694.54917 2020 746031300.590414 2021 730580419.040347