Year Number 2004-01-01 62.5499 2005-01-01 84.3566 2006-01-01 137.6936 2007-01-01 260.3413 2008-01-01 376.3916 2009-01-01 342.0434 2010-01-01 408.5761 2011-01-01 526.2748 2012-01-01 579.9596 2013-01-01 764.2899 2014-01-01 912.6259 2015-01-01 947.8659 2016-01-01 1017.3237