Year Number 2004-01-01 134276 2005-01-01 157813 2006-01-01 93589 2007-01-01 54280 2008-01-01 29970 2009-01-01 23534 2010-01-01 15347 2011-01-01 15140 2012-01-01 150605 2013-01-01 163148 2014-01-01 14606