Year Number 2008-01-01 790.8453 2009-01-01 781.3849 2010-01-01 773.9248 2011-01-01 739.8835 2012-01-01 694.4021 2013-01-01 704.3689 2014-01-01 632.1591 2015-01-01 589.7030 2016-01-01 566.2119