Year Number 2004-01-01 195.2289 2005-01-01 268.2787 2006-01-01 313.1497 2007-01-01 328.0789 2008-01-01 356.1274 2009-01-01 363.2108 2010-01-01 362.5696 2011-01-01 365.6568 2012-01-01 373.4442 2013-01-01 377.4197 2014-01-01 374.8329 2015-01-01 369.5197 2016-01-01 363.4390