Year current US$ 2008 65000000 2009 34000000 2010 43000000 2011 58000000 2012 69000000 2013 67000000 2014 42599998.4741211 2015 44000000 2016 52000000 2017 63000000 2018 79000000 2019 67000000 2020 50000000