Quarter	Percent, Seasonally Adjusted
1999-04-01	4.15755345320227
1999-07-01	3.65671585919446
1999-10-01	3.47066775855832
2000-01-01	2.97347767310144
2000-04-01	2.65153500475753
2000-07-01	2.65215057133058
2000-10-01	2.50697749701896
2001-01-01	2.67706831781408
2001-04-01	2.69511854552518
2001-07-01	2.76974969904123
2001-10-01	2.51356489272889
2002-01-01	2.69735064244371
2002-04-01	2.50181466751771
2002-07-01	2.39661421726633
2002-10-01	2.57347139707182
2003-01-01	2.58130719475564
2003-04-01	2.60574272172118
2003-07-01	2.65358435991515
2003-10-01	2.75500204219391
2004-01-01	2.63735194635156
2004-04-01	2.83743317371062
2004-07-01	2.80158435452671
2004-10-01	2.88259069765705
2005-01-01	3.05991362115269
2005-04-01	3.03154982401167
2005-07-01	3.05626820229472
2005-10-01	2.91026246576532
2006-01-01	1.98264077822675
2006-04-01	2.63209626945514
2006-07-01	2.60870656831173
2006-10-01	2.42478646404026
2007-01-01	2.48679824722973
2007-04-01	2.33064771635179
2007-07-01	2.42260204449386
2007-10-01	2.47188614966276
2008-01-01	2.92235137378383
2008-04-01	3.32361614514777
2008-07-01	3.70073794755413
2008-10-01	4.41411911690207
2009-01-01	6.51204734043110
2009-04-01	7.21461100194885
2009-07-01	7.96340093894583
2009-10-01	8.48233144363031
2010-01-01	9.25312608374607
2010-04-01	9.92415139404949
2010-07-01	10.31666775496440
2010-10-01	11.02757226965660
2011-01-01	10.93293823205940
2011-04-01	11.02232936838570
2011-07-01	11.36289440276360
2011-10-01	12.25151155104050
2012-01-01	12.67426710763170
2012-04-01	12.74293945464450
2012-07-01	13.12500941387400
2012-10-01	12.34557948671400
2013-01-01	12.28888646976690
2013-04-01	11.88566573452760
2013-07-01	11.78016759498940
2013-10-01	11.57649375593950
2014-01-01	10.83558216655050
2014-04-01	11.19634452540000
2014-07-01	10.25794697023440
2014-10-01	9.74490674062460
2015-01-01	9.79012345397057
2015-04-01	8.54188449831014
2015-07-01	8.27944285051050
2015-10-01	8.28847810646088
2016-01-01	7.61074211100880
2016-04-01	7.69198205559426
2016-07-01	6.78007275504110
2016-10-01	6.49516626590300
2017-01-01	6.35725980715146
2017-04-01	5.63067747389777
2017-07-01	5.66040059356783
2017-10-01	5.60706858716783
2018-01-01	5.45624465830760
2018-04-01	5.17110257893478