Year current US$ 2001 4250753.81347001 2002 6542336.22601786 2003 5077521.54383862 2004 4861511.18677848 2005 4932020.08441054 2006 3663470.19573544 2007 5604763.15217187 2008 5963465.67753755 2009 4827112.85881365 2010 3919900.61376033 2011 4582719.14145504 2012 3835897.95837314 2013 3671692.90359401 2014 3243646.76927269 2015 2634244.98718112 2016 2546854.64469292 2017 2742201.38454722 2018 2670024.95447656 2019 2405072.01027562 2020 2200934.77289511 2021 2949714.71138506 2022 2471059.51163564 2023 3000000