Year Number 2004-01-01 287.0558 2005-01-01 304.0782 2006-01-01 543.0811 2007-01-01 762.0846 2008-01-01 742.6284 2009-01-01 988.2152 2010-01-01 1060.6991 2011-01-01 986.6304 2012-01-01 927.2014 2013-01-01 592.7742 2014-01-01 595.5588 2015-01-01 540.6269 2016-01-01 545.1251