Quarter	Persons
1998-01-01	465100
1999-01-01	462200
1999-04-01	459400
1999-07-01	461900
1999-10-01	458000
2000-01-01	457900
2000-04-01	457900
2000-07-01	457900
2000-10-01	457900
2001-01-01	456500
2001-04-01	456500
2001-07-01	456500
2001-10-01	456500
2002-01-01	458400
2002-04-01	459900
2002-07-01	461300
2002-10-01	462700
2003-01-01	469800
2003-04-01	471400
2003-07-01	471700
2003-10-01	474800
2004-01-01	483900
2004-04-01	485700
2004-07-01	486200
2004-10-01	489600
2005-01-01	492300
2005-04-01	493200
2005-07-01	492600
2005-10-01	494500
2006-01-01	496000
2006-04-01	495500
2006-07-01	494200
2006-10-01	495000
2007-01-01	495700
2007-04-01	495900
2007-07-01	494500
2007-10-01	495400
2008-01-01	496100
2008-04-01	496300
2008-07-01	495300
2008-10-01	496300
2009-01-01	497300
2009-04-01	497200
2009-07-01	495800
2009-10-01	496000
2010-01-01	496300
2010-04-01	495700
2010-07-01	493600
2010-10-01	494100
2011-01-01	494700
2011-04-01	494100
2011-07-01	492000
2011-10-01	492000
2012-01-01	493100
2012-04-01	492800
2012-07-01	490700
2012-10-01	492200
2013-01-01	492700
2013-04-01	491400
2013-07-01	489200
2013-10-01	490200
2014-01-01	490300
2014-04-01	489100
2014-07-01	486500
2014-10-01	488000
2015-01-01	486000
2015-04-01	485700
2015-07-01	483100
2015-10-01	485000
2016-01-01	485600
2016-04-01	484800
2016-07-01	480900
2016-10-01	479300
2017-01-01	477000
2017-04-01	475600
2017-07-01	472000
2017-10-01	471300
2018-01-01	469400
2018-04-01	467500