Quarter	Thousands of Persons, Seasonally Adjusted
1998-01-01	508.3064
1998-04-01	503.0780
1998-07-01	510.4066
1998-10-01	510.0644
1999-01-01	533.1769
1999-04-01	559.1896
1999-07-01	557.3781
1999-10-01	570.4405
2000-01-01	538.5998
2000-04-01	534.7551
2000-07-01	524.3374
2000-10-01	496.4136
2001-01-01	491.0821
2001-04-01	492.6790
2001-07-01	486.7133
2001-10-01	505.0255
2002-01-01	498.9664
2002-04-01	475.8736
2002-07-01	476.7163
2002-10-01	468.3696
2003-01-01	463.9144
2003-04-01	455.0792
2003-07-01	456.5491
2003-10-01	463.8593
2004-01-01	516.0201
2004-04-01	507.8678
2004-07-01	505.6073
2004-10-01	493.4141
2005-01-01	475.4163
2005-04-01	481.2162
2005-07-01	488.9306
2005-10-01	465.2798
2006-01-01	447.5079
2006-04-01	440.2500
2006-07-01	425.2322
2006-10-01	424.3248
2007-01-01	421.6518
2007-04-01	409.3814
2007-07-01	403.6588
2007-10-01	392.3922
2008-01-01	384.7033
2008-04-01	366.7813
2008-07-01	370.1328
2008-10-01	388.8822
2009-01-01	437.3146
2009-04-01	454.2642
2009-07-01	485.2281
2009-10-01	509.6178
2010-01-01	554.6326
2010-04-01	609.3667
2010-07-01	649.4738
2010-10-01	705.6776
2011-01-01	748.6881
2011-04-01	831.3827
2011-07-01	917.8329
2011-10-01	1016.5860