Year current US$ 1995 8083643729.741401 1996 8874756163.046131 1997 10598602755.365927 1998 9281097315.492199 1999 8589840790.738621 2000 8745784136.249447 2001 9758831510.7875 2002 12113074049.908749 2003 16176523867.753674 2004 18860941159.78769 2005 20296273174.470074 2006 22794389477.067722 2007 27152998858.37396 2008 31568789031.3604 2009 23431161212.303806 2010 21905347346.874924 2011 24987136531.498863 2012 23194045078.50773 2013 24805948031.42286 2014 25511424828.85607 2015 23062230960.150093 2016 23965457747.41428 2017 27142436604.07754 2018 30808538984.812336 2019 31282560318.65445 2020 27971048985.55459 2021 36248393716.07869 2022 46789525918.53153 2023 46219747559.77695