Year Number 2004-01-01 57462 2005-01-01 46939 2006-01-01 59006 2007-01-01 44308 2008-01-01 250005 2009-01-01 150139 2010-01-01 188019 2011-01-01 166742 2012-01-01 128767 2013-01-01 327768 2014-01-01 275938