Year Persons 2005-01-01 17134364.25 2006-01-01 17562311.50 2007-01-01 17797427.50 2008-01-01 18216551.75 2009-01-01 18353474.00 2010-01-01 18587410.25 2011-01-01 19039424.50 2012-01-01 19458558.25 2013-01-01 19803844.00 2014-01-01 19991065.50 2015-01-01 20432985.00 2016-01-01 20883909.50 2017-01-01 21152480.50