Quarter	Percent, Seasonally Adjusted
1999-01-01	15.3531634376732
1999-04-01	14.4205840302635
1999-07-01	12.1978710728859
1999-10-01	12.9581627283315
2000-01-01	12.9256839186618
2000-04-01	14.1481543062300
2000-07-01	14.3695313477874
2000-10-01	15.1720788171647
2001-01-01	16.1487974553441
2001-04-01	14.4083953389238
2001-07-01	17.1008748387477
2001-10-01	17.4278465946499
2002-01-01	16.1535114059576
2002-04-01	14.5893703862848
2002-07-01	13.9859361625936
2002-10-01	12.9561206755620
2003-01-01	15.4734256794746
2003-04-01	14.2367679467262
2003-07-01	13.3052526627047
2003-10-01	16.8224600825465
2004-01-01	17.0477470573737
2004-04-01	18.9833141616151
2004-07-01	19.4658346986423
2004-10-01	16.8437170563924
2005-01-01	17.0193419041042
2005-04-01	19.1406526124299
2005-07-01	19.1089203147303
2005-10-01	20.5194246043539
2006-01-01	21.1116228084633
2006-04-01	21.4628240737563
2006-07-01	21.9067651413936
2006-10-01	21.1614013952757
2007-01-01	22.4096654331487
2007-04-01	23.3750666955396
2007-07-01	23.9660541319699
2007-10-01	22.3980619502187
2008-01-01	21.6737092341192
2008-04-01	21.3456523215386
2008-07-01	22.1954440549969
2008-10-01	23.4135871285204
2009-01-01	23.9337714763715
2009-04-01	24.2608285529254
2009-07-01	27.2389740774186
2009-10-01	26.5141378273515
2010-01-01	25.1425993127015
2010-04-01	25.9555519460369
2010-07-01	24.6793567711463
2010-10-01	26.5335373280357
2011-01-01	22.2958211083863
2011-04-01	22.6456293965014
2011-07-01	25.0363664315533
2011-10-01	24.9555343558906
2012-01-01	25.8699945239652
2012-04-01	26.2851938510801
2012-07-01	26.0730861980851
2012-10-01	27.6186047894871
2013-01-01	26.4326319289834
2013-04-01	27.2844706784265
2013-07-01	27.0663831821830
2013-10-01	27.0914317925673
2014-01-01	29.6561535326222
2014-04-01	31.1962399152279
2014-07-01	32.2020102959395
2014-10-01	31.3255697109725
2015-01-01	31.5331826501127
2015-04-01	32.4290996062277
2015-07-01	34.3891506648810
2015-10-01	33.3195094955755
2016-01-01	36.0707688296712
2016-04-01	34.7795037766020
2016-07-01	33.3041942662803
2016-10-01	36.5909791103042
2017-01-01	38.0637175952050
2017-04-01	39.0569883491843
2017-07-01	39.5407003857238
2017-10-01	41.3969951903084
2018-01-01	42.0510341269222
2018-04-01	44.2789752898824