Year constant 2015 US$ 2008 908.224918032001 2009 929.2646040761223 2010 967.358425882701 2011 791.2633787944764 2012 1029.3394251394461 2013 1079.9211440969696 2014 1741.321147731223 2015 1835.537821409253 2016 1886.2448784678033 2017 1888.607725145809 2018 1928.1522264724101 2019 1975.4890589176703 2020 2011.433820458994 2021 2028.969751094796