Year current US$ 2007 49306192 2008 82005246 2009 81823095 2010 116183374 2011 136348947 2012 198244859 2013 193922905 2014 178779702 2015 273942984 2016 153433874 2017 129215276 2018 120520508 2019 115769162 2020 113936601 2021 132818761 2022 186096554