Quarter	Thousands of Persons, Seasonally Adjusted
1999-01-01	439.1959
1999-04-01	441.4063
1999-07-01	435.9191
1999-10-01	439.1942
2000-01-01	440.7717
2000-04-01	443.4912
2000-07-01	449.7759
2000-10-01	447.1201
2001-01-01	446.5686
2001-04-01	443.0711
2001-07-01	450.1483
2001-10-01	452.4021
2002-01-01	452.9083
2002-04-01	450.4074
2002-07-01	442.0747
2002-10-01	437.0618
2003-01-01	437.1884
2003-04-01	438.4157
2003-07-01	431.1249
2003-10-01	446.6320
2004-01-01	454.9589
2004-04-01	462.4371
2004-07-01	468.5737
2004-10-01	459.9001
2005-01-01	463.7049
2005-04-01	461.1175
2005-07-01	466.2424
2005-10-01	474.4481
2006-01-01	474.0050
2006-04-01	478.7160
2006-07-01	466.8359
2006-10-01	465.8508
2007-01-01	469.6659
2007-04-01	477.3991
2007-07-01	474.2899
2007-10-01	470.7270
2008-01-01	471.6702
2008-04-01	472.4313
2008-07-01	479.3875
2008-10-01	480.6032
2009-01-01	475.3781
2009-04-01	475.4899
2009-07-01	481.0902
2009-10-01	478.7226
2010-01-01	480.1453
2010-04-01	479.1355
2010-07-01	468.5675
2010-10-01	476.2320
2011-01-01	468.8981
2011-04-01	465.5371
2011-07-01	465.8147
2011-10-01	473.0187