Quarter	Thousands of Persons, Seasonally Adjusted
1998-04-01	340.2000
1999-04-01	285.8000
2000-01-01	234.5718
2000-04-01	231.0437
2000-07-01	244.5546
2000-10-01	245.7872
2001-01-01	191.8118
2001-04-01	182.3013
2001-07-01	178.1608
2001-10-01	189.8162
2002-01-01	209.7078
2002-04-01	221.5253
2002-07-01	242.3882
2002-10-01	255.6314
2003-01-01	277.1195
2003-04-01	310.1168
2003-07-01	318.6984
2003-10-01	340.4406
2004-01-01	368.4333
2004-04-01	400.5534
2004-07-01	377.6276
2004-10-01	403.3940
2005-01-01	407.6564
2005-04-01	413.7637
2005-07-01	396.6578
2005-10-01	389.0618
2006-01-01	353.5784
2006-04-01	334.8103
2006-07-01	330.1489
2006-10-01	321.9369
2007-01-01	303.1468
2007-04-01	281.0598
2007-07-01	271.2470
2007-10-01	252.5517
2008-01-01	250.6442
2008-04-01	249.1886
2008-07-01	232.8643
2008-10-01	238.0313
2009-01-01	258.4308
2009-04-01	291.5406
2009-07-01	324.8558
2009-10-01	346.6944
2010-01-01	385.6491
2010-04-01	396.0235
2010-07-01	395.6162
2010-10-01	382.0251
2011-01-01	363.3841
2011-04-01	368.1788
2011-07-01	393.2253
2011-10-01	432.6246