Year Number 2008-01-01 658.3360 2009-01-01 675.4007 2010-01-01 701.3212 2011-01-01 737.3630 2012-01-01 786.3641 2013-01-01 770.8660 2014-01-01 778.1024 2015-01-01 744.5755 2016-01-01 699.0931 2017-01-01 727.6296