Year current US$ 2006 42010011.16449357 2007 51814103.79820213 2008 50729513.21718936 2009 53262681.06107298 2010 66884226.06843575 2011 79692408.58192274 2012 97404284.3644273 2013 121202333.79184143 2014 122737889.21977217 2015 123531295.4253644 2016 144172124.24922773 2017 159758043.57463962 2018 181185383.4689044 2019 166628984.86354092 2020 133316092.38911471 2021 18474053.58887215 2022 20123064.52192127 2023 125666237.67216136