Year Number 2004-01-01 50.0000 2005-01-01 53.3333 2006-01-01 53.3333 2007-01-01 136.6667 2008-01-01 136.6667 2009-01-01 146.6667 2010-01-01 150.0000 2011-01-01 156.6667 2012-01-01 193.3333 2013-01-01 213.3333 2014-01-01 260.0000 2015-01-01 276.6667 2016-01-01 320.0000