Year Number 2004-01-01 133619 2005-01-01 156258 2006-01-01 176872 2007-01-01 203663 2008-01-01 227505 2009-01-01 253900 2010-01-01 267475 2011-01-01 309306 2012-01-01 305635 2013-01-01 319033 2014-01-01 407158 2015-01-01 350063 2016-01-01 370520