Year Number 2004-01-01 641.1742 2005-01-01 711.2821 2006-01-01 759.7819 2007-01-01 818.4523 2008-01-01 866.1277 2009-01-01 957.6990 2010-01-01 977.8776 2011-01-01 1090.6342 2012-01-01 1048.0205 2013-01-01 1066.5954 2014-01-01 1329.4770 2015-01-01 1117.0663 2016-01-01 1159.1059