Quarter	Percent, Seasonally Adjusted
1999-07-01	61.7672052561356
1999-10-01	61.2673956211406
2000-01-01	60.2149639659532
2000-04-01	59.4701345725070
2000-07-01	59.6965146236967
2000-10-01	58.9838907110850
2001-01-01	58.5037293754901
2001-04-01	59.9653613376085
2001-07-01	60.2619776807222
2001-10-01	60.2428573283127
2002-01-01	60.7874389228681
2002-04-01	60.3999727760366
2002-07-01	60.7289972617473
2002-10-01	60.3064000609896
2003-01-01	58.7895988922742
2003-04-01	58.7077092955564
2003-07-01	58.9153006450639
2003-10-01	59.4757258192056
2004-01-01	60.6765326289452
2004-04-01	59.6328378821841
2004-07-01	59.8349881859913
2004-10-01	60.3980198363792
2005-01-01	60.3609987529948
2005-04-01	60.4851998004567
2005-07-01	60.1607199489230
2005-10-01	59.8598703053608
2006-01-01	60.5263990880452
2006-04-01	60.5712206368681
2006-07-01	60.2357698456800
2006-10-01	61.6006910134642
2007-01-01	61.8440733432577
2007-04-01	62.0675371441325
2007-07-01	62.0174713874738
2007-10-01	61.7428802415682
2008-01-01	61.9690193433018
2008-04-01	61.7599954543853
2008-07-01	61.8335176764506
2008-10-01	61.6581254408506
2009-01-01	61.5729449511426
2009-04-01	61.5407624110381
2009-07-01	61.9089060343643
2009-10-01	62.0081360566380
2010-01-01	62.5377000122471
2010-04-01	62.6072480129999
2010-07-01	62.7347782372226
2010-10-01	62.8037621219063
2011-01-01	63.1808365358505
2011-04-01	63.6985871026190
2011-07-01	63.6886102037952
2011-10-01	64.3297027498023
2012-01-01	64.4574998111739
2012-04-01	64.9695614885958
2012-07-01	64.6502716638820
2012-10-01	64.8510910106849
2013-01-01	64.6797818794727
2013-04-01	65.8347509262684
2013-07-01	66.2045671482284
2013-10-01	66.3280281219107
2014-01-01	67.1455020748981
2014-04-01	67.6936061194145
2014-07-01	67.3780871383900
2014-10-01	67.5569563002022
2015-01-01	68.1108467227980
2015-04-01	67.6263193539887
2015-07-01	67.9848107848178
2015-10-01	67.8569592720302
2016-01-01	67.7200239244530
2016-04-01	67.5760668463486
2016-07-01	68.3334654571962
2016-10-01	68.5883681307660
2017-01-01	69.0162323350474
2017-04-01	69.0640128499476
2017-07-01	69.1713492538851
2017-10-01	69.3173771654749
2018-01-01	69.1266638961248
2018-04-01	68.8910951922742
2018-07-01	68.7653839685564