Quarter	Thousands of Persons, Seasonally Adjusted
1998-04-01	150.1000
1999-04-01	121.1000
2000-01-01	117.2636
2000-04-01	99.8662
2000-07-01	105.6693
2000-10-01	104.3512
2001-01-01	90.3539
2001-04-01	84.6106
2001-07-01	78.5374
2001-10-01	82.8748
2002-01-01	97.8624
2002-04-01	108.8929
2002-07-01	127.9722
2002-10-01	132.3927
2003-01-01	147.9364
2003-04-01	162.0595
2003-07-01	172.0798
2003-10-01	182.4663
2004-01-01	193.8837
2004-04-01	204.8802
2004-07-01	202.4699
2004-10-01	217.3429
2005-01-01	212.4649
2005-04-01	215.3726
2005-07-01	204.3386
2005-10-01	200.4399
2006-01-01	176.6937
2006-04-01	166.6782
2006-07-01	165.7410
2006-10-01	155.3553
2007-01-01	144.7672
2007-04-01	133.4340
2007-07-01	130.4013
2007-10-01	122.5965
2008-01-01	127.5132
2008-04-01	119.8500
2008-07-01	116.2693
2008-10-01	121.5655
2009-01-01	136.3758
2009-04-01	154.8068
2009-07-01	172.5503
2009-10-01	188.8478
2010-01-01	206.0819
2010-04-01	211.6931
2010-07-01	212.8952
2010-10-01	202.7442
2011-01-01	194.9129
2011-04-01	202.0882
2011-07-01	213.3134
2011-10-01	235.2237