Quarter	Percent, Seasonally Adjusted
1999-01-01	36.2449371077067
1999-04-01	36.4897222450906
1999-07-01	36.5314673289742
1999-10-01	36.5669512601254
2000-01-01	36.2645997953494
2000-04-01	36.5714296566900
2000-07-01	36.5618668496361
2000-10-01	36.4747682131910
2001-01-01	36.4900598002208
2001-04-01	36.2507372139387
2001-07-01	36.3332456172899
2001-10-01	35.9253188799243
2002-01-01	35.6885821370681
2002-04-01	35.8625226162206
2002-07-01	35.7630307123710
2002-10-01	35.5294256124827
2003-01-01	35.1335825241444
2003-04-01	35.0048602081505
2003-07-01	35.2066451609190
2003-10-01	35.1587698653184
2004-01-01	36.9457614975279
2004-04-01	36.7757532498177
2004-07-01	36.6629360813040
2004-10-01	36.6124979280446
2005-01-01	36.5005223800268
2005-04-01	36.1863785908030
2005-07-01	35.7556948479167
2005-10-01	35.6399199495045
2006-01-01	35.5969607559949
2006-04-01	35.4378066840163
2006-07-01	35.3253226683273
2006-10-01	35.2303810584033
2007-01-01	34.8695226832383
2007-04-01	34.5377046675018
2007-07-01	34.1763733430104
2007-10-01	34.4103553736731
2008-01-01	34.2162129300041
2008-04-01	34.2258680415303
2008-07-01	34.3184060667134
2008-10-01	34.0811712388557
2009-01-01	34.1306794267042
2009-04-01	33.9260300142213
2009-07-01	33.7829941603822
2009-10-01	33.8601263331159
2010-01-01	34.0285293620326
2010-04-01	34.0108607303506
2010-07-01	33.9047805369625
2010-10-01	33.8271656888479
2011-01-01	33.7707290103702
2011-04-01	33.8691312842046
2011-07-01	33.9206793762355
2011-10-01	33.7278942122907
2012-01-01	33.7220134380627
2012-04-01	33.4949150596878
2012-07-01	33.4562809628656
2012-10-01	33.4550170051719
2013-01-01	33.3492767093219
2013-04-01	33.3335989969117
2013-07-01	33.2253222229510
2013-10-01	33.4861141471652
2014-01-01	33.4540274837719
2014-04-01	33.4815676198019
2014-07-01	33.5674870789719
2014-10-01	33.3934586981273
2015-01-01	33.3366394453022
2015-04-01	33.2320377743248
2015-07-01	33.0482154097562
2015-10-01	32.8130462411916
2016-01-01	32.5777954714102
2016-04-01	32.3753184051411
2016-07-01	32.1088980928930
2016-10-01	32.3047024796564
2017-01-01	32.2740080579478
2017-04-01	32.0828236824971
2017-07-01	32.1004595209086
2017-10-01	31.8585984563615
2018-01-01	31.7924610835236
2018-04-01	31.8261981695004