Quarter	Percent, Seasonally Adjusted
1998-01-01	44.7152327716322
1998-04-01	44.0746972234486
1998-07-01	43.7802770874139
1998-10-01	43.3755414887530
1999-01-01	43.1834875461472
1999-04-01	42.9797993468891
1999-07-01	42.7490029410676
1999-10-01	42.7311517106880
2000-01-01	42.6558433756872
2000-04-01	42.2878681846524
2000-07-01	41.8220369628486
2000-10-01	41.5112475920847
2001-01-01	40.9964791158825
2001-04-01	40.8550388968066
2001-07-01	40.3528000207180
2001-10-01	40.4247177505562
2002-01-01	39.9603948035158
2002-04-01	39.6746031717581
2002-07-01	39.4145024159572
2002-10-01	39.5755795096473
2003-01-01	39.3883322592474
2003-04-01	38.7904961214281
2003-07-01	38.7717823450953
2003-10-01	39.3018637245012
2004-01-01	35.7200902563218
2004-04-01	36.4649194711947
2004-07-01	36.4740623029413
2004-10-01	35.8872292697024
2005-01-01	36.1637194017990
2005-04-01	36.3795207601726
2005-07-01	36.6885251384118
2005-10-01	36.0005627292580
2006-01-01	35.6482818252880
2006-04-01	35.4807155141384
2006-07-01	35.8587044992541
2006-10-01	35.5835575267038
2007-01-01	36.5528741585724
2007-04-01	36.3513753943814
2007-07-01	35.3488609554266
2007-10-01	35.2508578040386
2008-01-01	34.5613429129766
2008-04-01	34.4924563401505
2008-07-01	34.6413801494872
2008-10-01	35.1394641047330
2009-01-01	35.3757839996231
2009-04-01	35.4689018865509
2009-07-01	35.4538561227594
2009-10-01	35.4540699857754
2010-01-01	35.6029918163642
2010-04-01	35.3966263564835
2010-07-01	35.6187889848013
2010-10-01	35.4365085324777
2011-01-01	35.5535988569699
2011-04-01	35.5780733363633
2011-07-01	35.3136892056001
2011-10-01	34.8623557685973
2012-01-01	33.8274748999680
2012-04-01	33.3445061277820
2012-07-01	33.4544048145235
2012-10-01	33.4751570600072
2013-01-01	33.3062566064063
2013-04-01	33.8802242378801
2013-07-01	34.2942833497812
2013-10-01	34.0624932241637
2014-01-01	33.6753341444160
2014-04-01	34.1116022050930
2014-07-01	33.6468403652109
2014-10-01	33.0808554218032
2015-01-01	33.9044062129035
2015-04-01	33.9663181661359
2015-07-01	34.3876483347490
2015-10-01	34.1857732345873
2016-01-01	34.0626556638981
2016-04-01	33.0623300691773
2016-07-01	32.9427067709617
2016-10-01	32.8323535750433
2017-01-01	32.6469197489482
2017-04-01	32.9624324362821
2017-07-01	32.3562871592608
2017-10-01	32.8082809470738
2018-01-01	32.5785260739652
2018-04-01	31.9729471348304