Quarter	Thousands of Persons, Seasonally Adjusted
1999-01-01	473.4973
1999-04-01	480.4951
1999-07-01	476.2017
1999-10-01	480.5327
2000-01-01	479.3858
2000-04-01	481.3454
2000-07-01	493.1296
2000-10-01	493.2926
2001-01-01	496.1411
2001-04-01	497.5129
2001-07-01	504.2913
2001-10-01	496.8695
2002-01-01	505.8812
2002-04-01	500.1479
2002-07-01	485.6209
2002-10-01	485.5926
2003-01-01	485.1088
2003-04-01	488.6068
2003-07-01	483.7313
2003-10-01	502.2635
2004-01-01	506.6753
2004-04-01	512.2758
2004-07-01	518.1762
2004-10-01	515.3909
2005-01-01	514.7499
2005-04-01	513.5184
2005-07-01	514.0374
2005-10-01	518.9608
2006-01-01	523.1198
2006-04-01	522.6655
2006-07-01	524.0672
2006-10-01	523.8417
2007-01-01	531.6786
2007-04-01	544.0155
2007-07-01	541.9647
2007-10-01	539.7909
2008-01-01	538.4526
2008-04-01	541.8689
2008-07-01	548.9196
2008-10-01	541.6108
2009-01-01	524.6044
2009-04-01	532.9307
2009-07-01	532.2729
2009-10-01	532.0755
2010-01-01	531.9046
2010-04-01	522.9770
2010-07-01	519.5016
2010-10-01	519.3707
2011-01-01	512.4079
2011-04-01	509.3879
2011-07-01	503.0588
2011-10-01	499.8197