Year Number 2004-01-01 514908.523445366 2005-01-01 566232.258576865 2006-01-01 631279.938073665 2007-01-01 720746.112025211 2008-01-01 904185.000000000 2009-01-01 991321.000000000 2010-01-01 945236.000000000 2011-01-01 809064.333333333 2012-01-01 770658.390000000 2013-01-01 1145771.000000000 2014-01-01 536976.000000000