Quarter	Thousands of Persons, Seasonally Adjusted
1999-01-01	2510.733
1999-04-01	2503.385
1999-07-01	2490.643
1999-10-01	2498.380
2000-01-01	2516.466
2000-04-01	2522.538
2000-07-01	2514.053
2000-10-01	2494.334
2001-01-01	2491.182
2001-04-01	2490.474
2001-07-01	2507.734
2001-10-01	2489.121
2002-01-01	2498.763
2002-04-01	2502.542
2002-07-01	2500.585
2002-10-01	2522.222
2003-01-01	2476.353
2003-04-01	2518.325
2003-07-01	2503.435
2003-10-01	2536.271
2004-01-01	2540.476
2004-04-01	2535.293
2004-07-01	2570.824
2004-10-01	2533.448
2005-01-01	2577.100
2005-04-01	2567.795
2005-07-01	2592.418
2005-10-01	2596.016
2006-01-01	2565.064
2006-04-01	2581.022
2006-07-01	2559.600
2006-10-01	2625.726
2007-01-01	2626.223
2007-04-01	2624.260
2007-07-01	2612.521
2007-10-01	2610.044
2008-01-01	2632.142
2008-04-01	2625.582
2008-07-01	2647.307
2008-10-01	2618.335
2009-01-01	2630.427
2009-04-01	2624.319
2009-07-01	2628.162
2009-10-01	2650.370
2010-01-01	2654.043
2010-04-01	2687.253
2010-07-01	2683.090
2010-10-01	2673.723
2011-01-01	2626.595
2011-04-01	2671.635
2011-07-01	2635.017
2011-10-01	2667.109