Year Persons 2005-01-01 15477334.00 2006-01-01 16223478.25 2007-01-01 16731772.00 2008-01-01 16921702.00 2009-01-01 17457893.25 2010-01-01 17632312.25 2011-01-01 18071420.50 2012-01-01 18840902.75 2013-01-01 19100143.75 2014-01-01 18933186.25 2015-01-01 19351042.50 2016-01-01 19705365.00 2017-01-01 19845268.75