Year current US$ 2007 59999.9986588955 2008 3949999.95827675 2009 6849999.9307095995 2010 18800000.205636 2011 18010000.072419602 2012 23511953.5801932 2013 22568836.510181397 2014 22724339.960143 2015 29899628.032388102 2016 26435066.686593898 2017 14340914.6573395 2018 34885264.7310123 2019 29991491.079330403 2020 54374369.8000908 2021 52011729.993159 2022 42826066.37664139