Quarter	Thousands of Persons, Seasonally Adjusted
1992-04-01	17539.97
1992-07-01	17477.13
1992-10-01	17475.84
1993-01-01	17442.31
1993-04-01	17288.18
1993-07-01	17230.48
1993-10-01	17324.59
1994-01-01	17209.65
1994-04-01	17123.06
1994-07-01	17097.26
1994-10-01	17100.52
1995-01-01	17084.55
1995-04-01	17111.16
1995-07-01	17072.65
1995-10-01	17011.92
1996-01-01	16987.66
1996-04-01	17071.01
1996-07-01	17159.05
1996-10-01	17097.38
1997-01-01	17105.02
1997-04-01	17096.61
1997-07-01	17108.43
1997-10-01	17103.56
1998-01-01	17146.38
1998-04-01	17140.22
1998-07-01	17188.83
1998-10-01	17219.10
1999-01-01	17207.15
1999-10-01	17273.76
2000-01-01	17314.72
2000-04-01	17330.05
2000-07-01	17251.81
2000-10-01	17348.88
2001-01-01	17420.85
2001-04-01	17440.44
2001-07-01	17377.49
2001-10-01	17262.39
2002-01-01	17284.52
2002-04-01	17248.54
2002-07-01	17207.35
2002-10-01	17093.91
2003-01-01	16908.97
2003-04-01	16971.56
2003-07-01	16929.55
2003-10-01	16951.70
2004-01-01	17082.96
2004-04-01	16978.20
2004-07-01	16953.28
2004-10-01	17062.36
2005-01-01	17089.97
2005-04-01	17120.59
2005-07-01	17228.89
2005-10-01	17192.35
2006-01-01	16928.99
2006-04-01	16932.87
2006-07-01	16989.75
2006-10-01	16904.55
2007-01-01	16858.56
2007-04-01	16847.53
2007-07-01	16823.52
2007-10-01	16925.53
2008-01-01	16986.44
2008-04-01	16955.49
2008-07-01	16995.26
2008-10-01	17124.65
2009-01-01	17228.66
2009-04-01	17244.88
2009-07-01	17311.49
2009-10-01	17342.85
2010-01-01	17517.58
2010-04-01	17689.55
2010-07-01	17712.60
2010-10-01	17723.41
2011-01-01	17758.22
2011-04-01	17846.05
2011-07-01	17855.25
2011-10-01	17953.63