Year current US$ 2005 0 2006 0 2007 0 2008 0 2009 0 2010 4808113.94457635 2011 5635456.25964623 2012 2613869.43608182 2013 4224467.04277571 2014 3839517.35819112 2015 34265894.5302209 2016 3992522.74580202 2017 22951786.934619 2018 27716388.9948714 2019 25700374.7167045 2020 22517471.0793913 2021 806654918.619653 2022 22100868.619101 2023 22928218.7762651