Year current US$ 2005 7370000.004768368 2006 6349999.964237209 2007 34349999.66435133 2008 4270000.0051409 2009 3139999.955892564 2010 1750000.0186264496 2011 2399999.9333172976 2012 3859999.9677389846 2013 5039999.924600119 2014 26969999.525696006 2015 33560000.905767046 2016 72330000.45455988 2017 52519999.008625776 2018 86560000.99517404 2019 33919999.7689575 2020 34309999.54231082 2021 68340000.09298326 2022 37160000.03926456