Year Number 2004-01-01 41.3707 2005-01-01 33.3997 2006-01-01 28.7367 2007-01-01 25.0821 2008-01-01 129.8476 2009-01-01 153.2040 2010-01-01 200.2373 2011-01-01 83.7480 2012-01-01 57.5604 2013-01-01 114.7142 2014-01-01 95.4736