Quarter	Percent, Seasonally Adjusted
1999-04-01	74.2540903951096
1999-07-01	75.0121642614310
1999-10-01	75.4708690090498
2000-01-01	75.8834082044750
2000-04-01	76.3285957119058
2000-07-01	76.4906837697337
2000-10-01	76.5512251159196
2001-01-01	76.8143610404353
2001-04-01	76.7565031665471
2001-07-01	76.6873271217795
2001-10-01	76.2696955799098
2002-01-01	75.6565109783094
2002-04-01	75.5244733631582
2002-07-01	75.3079865290879
2002-10-01	75.2191899919289
2003-01-01	75.0904751568693
2003-04-01	75.2419722240586
2003-07-01	75.0110271374074
2003-10-01	75.4846563031576
2004-01-01	75.8648046405346
2004-04-01	75.6906587800792
2004-07-01	76.0147901924294
2004-10-01	76.1931406095714
2005-01-01	76.4267934038569
2005-04-01	76.6781032814494
2005-07-01	77.1062522846772
2005-10-01	77.1960435081754
2006-01-01	77.8099687958660
2006-04-01	77.7974168911291
2006-07-01	77.8266569903745
2006-10-01	78.0260256609942
2007-01-01	80.9204096754139
2007-04-01	80.6067844709067
2007-07-01	80.3171610966440
2007-10-01	79.7875860543394
2008-01-01	79.0119410169315
2008-04-01	78.0547140626832
2008-07-01	76.5967279952533
2008-10-01	74.5238573895967
2009-01-01	70.6715443389386
2009-04-01	68.5540348981409
2009-07-01	67.2170877196867
2009-10-01	66.3929940738085
2010-01-01	65.5935019646738
2010-04-01	65.2430591158044
2010-07-01	64.8528721759195
2010-10-01	63.9417542854966
2011-01-01	63.9318766750282
2011-04-01	63.9656206141800
2011-07-01	63.4648318383088
2011-10-01	63.9693478481269
2012-01-01	63.4667978747992
2012-04-01	63.4512449917518
2012-07-01	63.7342514823940
2012-10-01	64.0792201892530
2013-01-01	65.2309143771132
2013-04-01	65.9482646271014
2013-07-01	66.6950720139975
2013-10-01	67.6994612062283
2014-01-01	67.5497001336454
2014-04-01	67.8208233123236
2014-07-01	68.5456527663026
2014-10-01	69.2488088460931
2015-01-01	69.6591295330000
2015-04-01	70.3172409274656
2015-07-01	70.4755466967883
2015-10-01	70.4303985070365
2016-01-01	70.8324719158836
2016-04-01	71.6760599812160
2016-07-01	72.2272487729358
2016-10-01	72.6503597320824
2017-01-01	72.7885736807976
2017-04-01	72.8234072147202
2017-07-01	73.0541768408849
2017-10-01	73.4113374990280
2018-01-01	73.9803668433609
2018-04-01	73.9518250140854