Quarter	Thousands of Persons, Seasonally Adjusted
2003-01-01	161.3328
2003-04-01	162.3505
2003-07-01	165.7872
2003-10-01	159.9513
2004-01-01	160.4896
2004-04-01	160.4639
2004-07-01	160.7568
2004-10-01	162.6007
2005-01-01	164.0524
2005-04-01	164.7883
2005-07-01	165.2679
2005-10-01	168.2738
2006-01-01	171.0995
2006-04-01	174.5596
2006-07-01	175.8460
2006-10-01	176.7467
2007-01-01	180.1660
2007-04-01	180.8929
2007-07-01	182.3443
2007-10-01	182.2933
2008-01-01	182.1187
2008-04-01	183.1332
2008-07-01	185.9182
2008-10-01	184.9272
2009-01-01	182.3600
2009-04-01	180.1578
2009-07-01	179.9148
2009-10-01	181.0188
2010-01-01	181.7438
2010-04-01	181.4860
2010-07-01	179.3449
2010-10-01	181.3948
2011-01-01	180.2528
2011-04-01	181.4183
2011-07-01	179.9925
2011-10-01	178.3385
2012-01-01	180.4477