Quarter	Thousands of Persons, Seasonally Adjusted
1998-04-01	7742
1999-04-01	7890.500
2000-01-01	8005.117
2000-04-01	8080.357
2000-07-01	8149.743
2000-10-01	8201.175
2001-01-01	8226.918
2001-04-01	8239.549
2001-07-01	8252.596
2001-10-01	8299.305
2002-01-01	8341.817
2002-04-01	8389.738
2002-07-01	8430.827
2002-10-01	8436.802
2003-01-01	8430.576
2003-04-01	8425.736
2003-07-01	8443.993
2003-10-01	8429.044
2004-01-01	8479.500
2004-04-01	8491.945
2004-07-01	8497.950
2004-10-01	8504.468
2005-01-01	8487.475
2005-04-01	8517.047
2005-07-01	8519.972
2005-10-01	8529.560
2006-01-01	8561.357
2006-04-01	8566.889
2006-07-01	8602.099
2006-10-01	8657.268
2007-01-01	8700.426
2007-04-01	8742.795
2007-07-01	8766.606
2007-10-01	8755.249
2008-01-01	8781.045
2008-04-01	8826.153
2008-07-01	8842.829
2008-10-01	8890.720
2009-01-01	8936.225
2009-04-01	8894.512
2009-07-01	8888.140
2009-10-01	8877.666
2010-01-01	8752.886
2010-04-01	8771.418
2010-07-01	8767.526
2010-10-01	8745.642
2011-01-01	8728.388
2011-04-01	8721.492
2011-07-01	8758.507
2011-10-01	8818.814