Quarter	Percent, Seasonally Adjusted
1999-01-01	21.2593416263058
1999-04-01	24.2050880856661
1999-07-01	26.4256402593869
1999-10-01	20.7109160330042
2000-01-01	20.5461917995882
2000-04-01	22.5828608604549
2000-07-01	25.3482835053317
2000-10-01	20.5349956918958
2001-01-01	20.5335087385752
2001-04-01	22.3378310902826
2001-07-01	27.7442970259671
2001-10-01	21.8490559518825
2002-01-01	18.8695253924956
2002-04-01	21.1531942631724
2002-07-01	23.9531956394075
2002-10-01	20.2720840725548
2003-01-01	19.4964932937767
2003-04-01	20.8164998949109
2003-07-01	22.0446614121101
2003-10-01	19.9548030660082
2004-01-01	18.8922485209452
2004-04-01	17.5339379556646
2004-07-01	17.5967690206585
2004-10-01	14.0324955801559
2005-01-01	16.5547335845117
2005-04-01	15.9956605306848
2005-07-01	17.2360855673610
2005-10-01	15.1859006340565
2006-01-01	13.2601289284475
2006-04-01	14.3524407336222
2006-07-01	15.7163728536723
2006-10-01	13.4600723597475
2007-01-01	12.4413066114097
2007-04-01	13.6963283344333
2007-07-01	15.4195727394696
2007-10-01	13.4421837038120
2008-01-01	12.0787935968573
2008-04-01	13.4598594347344
2008-07-01	15.9645271407056
2008-10-01	14.7893914002860
2009-01-01	14.6729823246080
2009-04-01	16.0107855105780
2009-07-01	16.9246654620246
2009-10-01	14.8890008256103
2010-01-01	15.2059826064903
2010-04-01	15.4124661417676
2010-07-01	15.6774847584144
2010-10-01	14.2604237658696
2011-01-01	14.1034400421760
2011-04-01	16.3998646479432
2011-07-01	17.2926568822030
2011-10-01	15.6596520401932
2012-01-01	14.7712089237034
2012-04-01	15.9575418800683
2012-07-01	17.1730795999653
2012-10-01	16.0589383942634
2013-01-01	15.5517861295523
2013-04-01	16.6963767918617
2013-07-01	17.8048549556194
2013-10-01	16.5396418434283
2014-01-01	16.2726586675644
2014-04-01	18.0767512001415
2014-07-01	19.1502681743443
2014-10-01	17.5754508577888
2015-01-01	16.8159160716617
2015-04-01	18.2449868508190
2015-07-01	20.2473573667298
2015-10-01	17.6196958845825
2016-01-01	17.5164713362613
2016-04-01	18.6481030442061
2016-07-01	21.0712237410754
2016-10-01	18.3027953615959
2017-01-01	17.5309922559752
2017-04-01	18.4537764680639
2017-07-01	21.0601451458091
2017-10-01	18.8546484832765
2018-01-01	17.6875249159975
2018-04-01	18.3971733265872