Year Number 2004-01-01 131441 2005-01-01 154629 2006-01-01 157621 2007-01-01 209045 2008-01-01 221610 2009-01-01 224644 2010-01-01 245820 2011-01-01 245789 2012-01-01 244689 2013-01-01 251558 2014-01-01 236228