Year current US$ 2005 1172000000 2006 1048000000 2007 1054000000 2008 1130000000 2009 936000000 2010 872000000 2011 962000000 2012 960000000 2013 980000000 2014 1023000000 2015 986000000 2016 1023000000 2017 1098000000 2018 1251000000 2019 1428000000 2020 1338000000 2021 1532000000 2022 1798000000 2023 2683000000