Quarter	Thousands of Persons, Seasonally Adjusted
1998-04-01	38.6010
1999-01-01	35.9263
1999-04-01	37.6613
1999-07-01	38.1439
1999-10-01	36.4810
2000-01-01	34.0766
2000-04-01	35.6848
2000-07-01	33.1525
2000-10-01	31.5949
2001-01-01	29.9916
2001-04-01	29.0832
2001-07-01	27.3461
2001-10-01	32.9407
2002-01-01	31.9616
2002-04-01	30.8810
2002-07-01	30.6564
2002-10-01	30.3777
2003-01-01	33.0324
2003-04-01	32.7842
2003-07-01	33.4323
2003-10-01	33.2178
2004-01-01	32.3970
2004-04-01	32.6296
2004-07-01	31.2418
2004-10-01	31.3895
2005-01-01	30.1425
2005-04-01	31.4119
2005-07-01	34.7905
2005-10-01	36.9856
2006-01-01	26.9906
2006-04-01	30.1136
2006-07-01	26.0742
2006-10-01	24.8304
2007-01-01	23.7593
2007-04-01	21.3839
2007-07-01	21.2717
2007-10-01	22.5548
2008-01-01	23.8253
2008-04-01	20.8274
2008-07-01	22.7116
2008-10-01	22.7216
2009-01-01	27.3915
2009-04-01	33.3294
2009-07-01	36.5188
2009-10-01	36.5479
2010-01-01	38.2396
2010-04-01	43.8759
2010-07-01	40.5102
2010-10-01	45.3277
2011-01-01	43.9920
2011-04-01	45.2352
2011-07-01	45.0460
2011-10-01	45.5524