Year Number 2004-01-01 947.9999 2005-01-01 1027.4664 2006-01-01 1116.2240 2007-01-01 1278.8372 2008-01-01 1406.4640 2009-01-01 1414.4762 2010-01-01 1485.8484 2011-01-01 1548.2844 2012-01-01 1594.7465 2013-01-01 1695.6877 2014-01-01 1637.3227 2015-01-01 1118.8734 2016-01-01 1256.8008 2017-01-01 1350.0871