Year current US$ 2002 230000 2003 890000 2004 1320000 2005 21860000 2006 17170000 2007 19300000 2008 25770000 2009 690000 2010 1400000 2011 2009999.9999999998 2012 1700000 2013 3340000 2014 1170000 2015 930000 2016 1050000 2017 3500000 2018 1040000 2019 1320000 2020 2260000 2021 6170000 2022 690000