Year current US$ 2005 48149999.87371266 2006 56410000.350326344 2007 59689999.44627289 2008 99409998.47091734 2009 93659999.94799496 2010 70180000.34429128 2011 56159999.64624637 2012 55029999.91737305 2013 44869999.87624588 2014 41079999.852925524 2015 40770000.06288289 2016 41530000.10363756 2017 49490000.272169694 2018 54579999.76538123 2019 80060000.6710738 2020 55669999.580830336 2021 69369999.3044138 2022 79540000.2747774