Year Number 2004-01-01 564.4020 2005-01-01 542.6245 2006-01-01 585.5333 2007-01-01 663.8508 2008-01-01 661.8808 2009-01-01 675.9040 2010-01-01 701.0763 2011-01-01 719.2380 2012-01-01 748.7974 2013-01-01 779.8757 2014-01-01 875.2272 2015-01-01 964.6495 2016-01-01 994.1457