Quarter	Thousands of Persons, Seasonally Adjusted
2000-07-01	16078
2001-07-01	15789
2002-07-01	16264
2003-07-01	15906
2004-07-01	15924
2005-07-01	17035
2006-07-01	17460
2007-07-01	17232
2008-01-01	17814
2008-04-01	17844
2008-07-01	17777
2008-10-01	17718
2009-01-01	17820
2009-04-01	17495
2009-07-01	17374
2009-10-01	17476
2010-01-01	17471
2010-04-01	17462
2010-07-01	17371
2010-10-01	17269
2011-01-01	17482
2011-04-01	17663
2011-07-01	17761
2011-10-01	17741
2012-01-01	17948