Year Number 2004-01-01 684.2979 2005-01-01 717.5236 2006-01-01 779.0625 2007-01-01 821.5416 2008-01-01 871.3067 2009-01-01 901.1264 2010-01-01 882.8483 2011-01-01 883.1643 2012-01-01 901.0372 2013-01-01 920.9132 2014-01-01 939.6976 2015-01-01 982.1712 2016-01-01 1001.2981