Quarter	Percent, Seasonally Adjusted
1999-01-01	42.8805100688555
1999-04-01	42.7508048264841
1999-07-01	43.0513792484162
1999-10-01	43.8354003315203
2000-01-01	43.8044576944509
2000-04-01	43.8544862420183
2000-07-01	44.0324977604229
2000-10-01	43.9630795029192
2001-01-01	42.7714634484864
2001-04-01	42.9054219991794
2001-07-01	43.0768252519264
2001-10-01	43.4358651330551
2002-01-01	43.9844552338805
2002-04-01	44.1049903788771
2002-07-01	44.1679140223157
2002-10-01	44.4885153990714
2003-01-01	44.4760629703841
2003-04-01	44.6977127844020
2003-07-01	45.0358210616436
2003-10-01	45.2435467442036
2004-01-01	45.2398616977010
2004-04-01	45.0638880597917
2004-07-01	45.3555775019395
2004-10-01	45.6171023899718
2005-01-01	47.2672798535928
2005-04-01	48.1178933743457
2005-07-01	48.2943073035750
2005-10-01	47.9909963975207
2006-01-01	48.2662399307469
2006-04-01	48.3242500778099
2006-07-01	47.9000272569279
2006-10-01	48.1838782096299
2007-01-01	47.8829316268804
2007-04-01	47.9754668912955
2007-07-01	48.0534197889996
2007-10-01	47.6322530543528
2008-01-01	47.6314504038769
2008-04-01	47.8222027184248
2008-07-01	47.8802568691092
2008-10-01	47.4483675539214
2009-01-01	46.6325099596172
2009-04-01	45.3450370446362
2009-07-01	44.5734439853361
2009-10-01	43.5641167015371
2010-01-01	43.2628507047994
2010-04-01	43.1223362440836
2010-07-01	42.1723696790690
2010-10-01	42.0717448939827
2011-01-01	41.4941923416738
2011-04-01	41.1419417186093
2011-07-01	41.1219093212954
2011-10-01	39.8917465857494
2012-01-01	39.6421861078175
2012-04-01	39.4095387588298
2012-07-01	38.7374071328878
2012-10-01	38.3081372314376
2013-01-01	38.6528579224739
2013-04-01	37.7246159957000
2013-07-01	37.4439804046720
2013-10-01	37.2761465548233
2014-01-01	36.4202222266175
2014-04-01	35.4698222121217
2014-07-01	35.2937829700630
2014-10-01	35.6712708875957
2015-01-01	34.9544905004938
2015-04-01	34.9529428791048
2015-07-01	34.9626984694969
2015-10-01	33.9944103617342
2016-01-01	33.4624491489931
2016-04-01	33.5041547412507
2016-07-01	32.7747852545113
2016-10-01	32.4485027148374
2017-01-01	33.1905970296396
2017-04-01	32.9260908052896
2017-07-01	33.6795076976726
2017-10-01	33.5164787830422
2018-01-01	32.8749340648007
2018-04-01	33.1632977798588
2018-07-01	32.9028667666087