Quarter	Percent, Seasonally Adjusted
1998-01-01	42.6913569184773
1998-04-01	41.7650772749153
1998-07-01	41.2177709344520
1998-10-01	40.3755003827813
1999-01-01	39.2365236183065
1999-04-01	38.5926480476769
1999-07-01	37.7975715792377
1999-10-01	37.4218381746384
2000-01-01	37.1786947271798
2000-04-01	36.6417307692172
2000-07-01	36.1635106537474
2000-10-01	35.5053953876570
2001-01-01	35.3373918156527
2001-04-01	34.5631584947724
2001-07-01	33.7817844390422
2001-10-01	33.1778360743311
2002-01-01	32.4413195115424
2002-04-01	32.6651045365486
2002-07-01	32.0319216358260
2002-10-01	31.6682430772000
2003-01-01	30.9470775346529
2003-04-01	30.1425246003381
2003-07-01	29.6734661206994
2003-10-01	29.0712470661454
2004-01-01	28.3624718712084
2004-04-01	28.0304518262561
2004-07-01	27.5368861660948
2004-10-01	27.1926275987145
2005-01-01	27.4491557763311
2005-04-01	27.2404363737837
2005-07-01	27.3592799588399
2005-10-01	27.7814613923438
2006-01-01	27.1818116411815
2006-04-01	27.6116915962026
2006-07-01	27.7537877769833
2006-10-01	28.1481733004162
2007-01-01	28.7779403418739
2007-04-01	28.6053723810777
2007-07-01	28.4135485574638
2007-10-01	28.1679482657346
2008-01-01	27.8201827781678
2008-04-01	28.2878893833381
2008-07-01	28.0850748883279
2008-10-01	28.0783710336453
2009-01-01	27.5389314095213
2009-04-01	26.8790873331565
2009-07-01	26.2852818951425
2009-10-01	25.4505983655278
2010-01-01	24.9904622140885
2010-04-01	24.9707398306149
2010-07-01	25.6044336598912
2010-10-01	25.3038726617738
2011-01-01	24.8239450174024
2011-04-01	24.5539328337161
2011-07-01	24.7349064428956
2011-10-01	23.9676388139210
2012-01-01	25.0847518371340
2012-04-01	25.1463786808232
2012-07-01	25.3001882558664
2012-10-01	25.2385630044861
2013-01-01	25.4623970999597
2013-04-01	25.6422503326512
2013-07-01	25.5746001423882
2013-10-01	25.5688436890402
2014-01-01	26.2447810137610
2014-04-01	26.8066224111752
2014-07-01	27.2832073568274
2014-10-01	28.0655618748838
2015-01-01	28.3825084621631
2015-04-01	28.5196475497328
2015-07-01	28.1740022722464
2015-10-01	28.4719557093141
2016-01-01	28.4721345735853
2016-04-01	28.5845292425498
2016-07-01	28.6882721642283
2016-10-01	28.7329640676918
2017-01-01	29.3819841422542
2017-04-01	28.9664091773277
2017-07-01	29.2828483872114
2017-10-01	28.8974954388102
2018-01-01	28.2353767189456
2018-04-01	28.0855200035545