Year Number 2004-01-01 778.028443250927 2005-01-01 867.088527332902 2006-01-01 1035.784693411310 2007-01-01 1186.965836634230 2008-01-01 1265.289694607360 2009-01-01 1217.461933354650 2010-01-01 1169.970840777290 2011-01-01 1338.409359675770 2012-01-01 1509.850027620600 2013-01-01 1677.447593111220 2014-01-01 1442.471985178300