Year current US$ 2006 16158020000 2007 17251300000 2008 7987930000 2009 10268870000 2010 6834300000 2011 2853320000 2012 1995750000 2013 2104730000 2014 4031000000 2015 2692400000 2016 2511333005.64887 2017 2822392823.2554097 2018 3313490000 2019 4284870000 2020 4693160000 2021 5651980000 2022 6532660000