Quarter	Percent, Seasonally Adjusted
1998-01-01	60.8786681404523
1998-04-01	60.7134468774966
1998-07-01	60.2100833009058
1998-10-01	59.9339685579609
1999-01-01	59.4501926370951
1999-04-01	59.8107534234887
1999-07-01	59.9314394839216
1999-10-01	59.5616021395653
2000-01-01	59.9321326113521
2000-04-01	59.8289696408547
2000-07-01	59.5418722240501
2000-10-01	59.5054070636524
2001-01-01	59.9547377564575
2001-04-01	60.6574050958227
2001-07-01	60.6981270089340
2001-10-01	60.8467769510240
2002-01-01	60.4374338580343
2002-04-01	60.0491048413917
2002-07-01	59.6543786595161
2002-10-01	59.4335810707645
2003-01-01	59.4605888268232
2003-04-01	59.3588453809652
2003-07-01	59.0747704211107
2003-10-01	58.8140711418966
2004-01-01	58.1686332666443
2004-04-01	58.0072943792078
2004-07-01	57.9378343864530
2004-10-01	57.8286682288040
2005-01-01	58.1350441727781
2005-04-01	57.9021435972437
2005-07-01	57.7684489493302
2005-10-01	57.6498279628580
2006-01-01	57.6578926091101
2006-04-01	57.6933198299722
2006-07-01	57.3411174754257
2006-10-01	57.5533893623218
2007-01-01	57.6023590986602
2007-04-01	57.6113032473314
2007-07-01	57.6827220794642
2007-10-01	57.6979666877185
2008-01-01	57.7428479250032
2008-04-01	57.6712267219032
2008-07-01	57.6256868969982
2008-10-01	57.2635479498738
2009-01-01	56.7842598136585
2009-04-01	56.6332999143410
2009-07-01	56.3307877406052
2009-10-01	56.2615501979561
2010-01-01	56.0210751688948
2010-04-01	55.9009513493881
2010-07-01	55.8731259627014
2010-10-01	55.8816316329010
2011-01-01	56.0838501861112
2011-04-01	56.3879165166598
2011-07-01	56.4131255726978
2011-10-01	56.0075559692771
2012-01-01	56.1042909586032
2012-04-01	56.0481189928729
2012-07-01	55.9003291642056
2012-10-01	56.0145403927524
2013-01-01	56.3508487320870
2013-04-01	56.0315527071299
2013-07-01	56.1596582657870
2013-10-01	56.4509853581496
2014-01-01	55.9700248955076
2014-04-01	55.8350346587815
2014-07-01	55.9202264944682
2014-10-01	55.8710947625923
2015-01-01	55.5808641228051
2015-04-01	55.2413362874948
2015-07-01	55.1383918976811
2015-10-01	55.0732561707803
2016-01-01	54.9136089061775
2016-04-01	54.9885657996985
2016-07-01	54.8233076669759
2016-10-01	55.2171627541702
2017-01-01	55.1091434498050
2017-04-01	55.0614187672134
2017-07-01	55.4160607209129
2017-10-01	55.4610861511709
2018-01-01	55.6708608466051
2018-04-01	55.6313968876268