Year Number 2005-01-01 93.2156 2006-01-01 143.8433 2007-01-01 194.2920 2008-01-01 262.5112 2009-01-01 303.9372 2010-01-01 360.8584 2011-01-01 401.7828 2012-01-01 465.2208 2013-01-01 542.3897 2014-01-01 626.1001