Quarter	Thousands of Persons, Seasonally Adjusted
1997-10-01	171.9411
1998-01-01	145.4193
1998-04-01	129.0402
1998-07-01	118.5039
1998-10-01	106.8899
1999-01-01	99.4113
1999-04-01	101.5229
1999-07-01	93.6207
1999-10-01	90.2940
2000-01-01	85.4108
2000-04-01	78.4922
2000-07-01	72.5644
2000-10-01	70.7532
2001-01-01	68.5721
2001-04-01	68.7205
2001-07-01	73.6419
2001-10-01	73.5296
2002-01-01	82.7498
2002-04-01	81.1855
2002-07-01	80.2762
2002-10-01	86.6518
2003-01-01	89.8269
2003-04-01	87.6897
2003-07-01	93.4799
2003-10-01	88.8880
2004-01-01	88.2036
2004-04-01	89.3868
2004-07-01	88.0341
2004-10-01	89.2952
2005-01-01	85.3886
2005-04-01	87.5247
2005-07-01	88.8726
2005-10-01	92.7388
2006-01-01	92.1161
2006-04-01	93.4419
2006-07-01	99.3014
2006-10-01	92.6727
2007-01-01	97.4789
2007-04-01	101.0623
2007-07-01	102.4974
2007-10-01	104.9106
2008-01-01	107.3943
2008-04-01	116.6746
2008-07-01	144.5746
2008-10-01	170.2439
2009-01-01	228.6818
2009-04-01	262.7720
2009-07-01	267.5198
2009-10-01	274.3146
2010-01-01	281.3729
2010-04-01	291.0233
2010-07-01	287.6853
2010-10-01	306.0119
2011-01-01	302.1654
2011-04-01	301.7669
2011-07-01	303.9425
2011-10-01	308.0900