Year current US$ 2005 1242361273.6830797 2006 1372573375.6053379 2007 2473678801.1043515 2008 2890901916.03755 2009 2786596137.312465 2010 4387356494.184494 2011 4831246421.347791 2012 5200932525.212665 2013 5403821021.394395 2014 5524191123.974741 2015 5822682424.641677 2016 5798482501.867709 2017 5007105573.963566 2018 6881574375.007403 2019 6147108184.537053