Quarter	Percent, Seasonally Adjusted
1999-04-01	29.5931140511418
1999-07-01	29.3945473383157
1999-10-01	29.4890652508272
2000-01-01	29.7084126581144
2000-04-01	29.5424733560856
2000-07-01	29.7605295671470
2000-10-01	29.9625943001163
2001-01-01	29.8637778856187
2001-04-01	30.1970839883805
2001-07-01	30.0072778144859
2001-10-01	30.0925709006219
2002-01-01	30.2653235756583
2002-04-01	30.3185362295281
2002-07-01	30.3023441039461
2002-10-01	30.0232482174361
2003-01-01	30.1361505368285
2003-04-01	30.0715580147388
2003-07-01	29.9971056854297
2003-10-01	30.2523262728019
2004-01-01	30.2121705742254
2004-04-01	30.4650743190902
2004-07-01	30.5005075770885
2004-10-01	30.3796870337706
2005-01-01	30.2443670583140
2005-04-01	30.5981317004027
2005-07-01	30.5176845961096
2005-10-01	30.2541027627373
2006-01-01	30.2781417964415
2006-04-01	30.1227800402444
2006-07-01	29.8113792362317
2006-10-01	30.1334249983259
2007-01-01	30.1955753222347
2007-04-01	30.2092380066673
2007-07-01	30.2064751035528
2007-10-01	30.2185391220308
2008-01-01	30.0424919997582
2008-04-01	29.9813041676661
2008-07-01	30.1244927840493
2008-10-01	29.9708674889410
2009-01-01	30.1148150931117
2009-04-01	30.5574403335963
2009-07-01	30.7752818347386
2009-10-01	31.1356023347733
2010-01-01	31.2912910013149
2010-04-01	31.0307358010092
2010-07-01	30.7715707750311
2010-10-01	30.9089595443758
2011-01-01	31.1920470099464
2011-04-01	31.0761555918322
2011-07-01	31.2987292742446
2011-10-01	31.2691770932048
2012-01-01	31.2952480560786
2012-04-01	30.9891686905558
2012-07-01	31.1365558565203
2012-10-01	31.1032101805022
2013-01-01	31.3893065329728
2013-04-01	31.2248236915178
2013-07-01	31.1076185831451
2013-10-01	31.2166314137946
2014-01-01	31.1604923456094
2014-04-01	31.3147357716355
2014-07-01	31.4233168866643
2014-10-01	31.6425157452193
2015-01-01	31.3465425869476
2015-04-01	31.6617991073526
2015-07-01	31.5752545788059
2015-10-01	31.1922043727319
2016-01-01	31.2148115008204
2016-04-01	31.2383743981682
2016-07-01	31.4618932138834
2016-10-01	31.6564697782145
2017-01-01	31.6020226793565
2017-04-01	31.6000939419256
2017-07-01	32.0672187785391
2017-10-01	31.8171562927454
2018-01-01	31.6228483822141
2018-04-01	31.7586418021108