Quarter	Percent, Seasonally Adjusted
1999-01-01	29.6158855064885
1999-04-01	30.0679306074783
1999-07-01	30.6026527489074
1999-10-01	31.5796019231955
2000-01-01	31.8684429587372
2000-04-01	32.4545765080338
2000-07-01	32.7363026952001
2000-10-01	32.9677140518058
2001-01-01	33.6438025914442
2001-04-01	33.8130962255862
2001-07-01	34.1088396823119
2001-10-01	34.3477785692342
2002-01-01	34.5016549977442
2002-04-01	34.4957279570722
2002-07-01	34.2012343030951
2002-10-01	34.3099262190759
2003-01-01	34.3454199682659
2003-04-01	34.6361365061085
2003-07-01	34.7878150324417
2003-10-01	34.9566822531672
2004-01-01	35.2595696856602
2004-04-01	34.9562826935956
2004-07-01	35.2627904393547
2004-10-01	35.9272736408481
2005-01-01	37.2939365188562
2005-04-01	38.4386898616524
2005-07-01	39.1887950022819
2005-10-01	39.1369123898254
2006-01-01	39.3536654382898
2006-04-01	39.6407736196342
2006-07-01	39.5558943711194
2006-10-01	39.6575451944189
2007-01-01	39.5241455159603
2007-04-01	39.4843147066654
2007-07-01	39.2698926944169
2007-10-01	38.6151642015092
2008-01-01	37.8710891798621
2008-04-01	36.8700863333334
2008-07-01	35.8373467222277
2008-10-01	33.5204307238416
2009-01-01	30.4642620291926
2009-04-01	28.3703945541012
2009-07-01	26.8676213022551
2009-10-01	26.4249221062827
2010-01-01	26.0282017038362
2010-04-01	25.3256319861491
2010-07-01	24.5649314199115
2010-10-01	23.9194016939284
2011-01-01	23.1574988022725
2011-04-01	22.4877729981799
2011-07-01	21.7706138488285
2011-10-01	20.6254859861132
2012-01-01	19.5966441152360
2012-04-01	18.6717547341353
2012-07-01	18.0935996864561
2012-10-01	17.2134536425404
2013-01-01	17.0914095478807
2013-04-01	16.7590111996483
2013-07-01	16.6593510435548
2013-10-01	16.7674945774827
2014-01-01	16.6500535479916
2014-04-01	16.6867637294052
2014-07-01	16.3528433551065
2014-10-01	17.1734687152164
2015-01-01	17.4083272973619
2015-04-01	17.8951605986257
2015-07-01	18.2177943196740
2015-10-01	18.2310772338335
2016-01-01	18.1952574810490
2016-04-01	18.1001920813084
2016-07-01	18.5230744277794
2016-10-01	18.6272894637307
2017-01-01	19.5905193627706
2017-04-01	19.9961604316093
2017-07-01	21.1779156749165
2017-10-01	21.1273515929048
2018-01-01	21.1244923086347
2018-04-01	21.7513023340739
2018-07-01	21.7005716392152