Year Number 2004-01-01 50245 2005-01-01 68441 2006-01-01 82648 2007-01-01 104110 2008-01-01 141158 2009-01-01 139886 2010-01-01 146490 2011-01-01 159046 2012-01-01 175728 2013-01-01 192899 2014-01-01 280604 2015-01-01 268158 2016-01-01 241943 2017-01-01 393972