Year Number 2007-01-01 3.5663 2008-01-01 15.3246 2009-01-01 102.7294 2010-01-01 154.0715 2011-01-01 234.3661 2012-01-01 565.4840 2013-01-01 763.4635 2014-01-01 1109.0316 2015-01-01 2875.7263 2016-01-01 3616.1783