Quarter	Percent, Seasonally Adjusted
1999-01-01	70.7626561732289
1999-04-01	69.9035591423666
1999-07-01	69.8743430306558
1999-10-01	68.1749108358681
2000-01-01	71.7560079557259
2000-04-01	68.6410680622407
2000-07-01	64.2252724533177
2000-10-01	66.4727513893194
2001-01-01	65.4278985468558
2001-04-01	64.8425785510777
2001-07-01	67.7426007666848
2001-10-01	65.1218045442115
2002-01-01	65.5422331639652
2002-04-01	66.8437082210652
2002-07-01	65.5012853607323
2002-10-01	67.6668093013644
2003-01-01	60.8242155062452
2003-04-01	63.3320573930325
2003-07-01	65.8226248891732
2003-10-01	63.9894610163196
2004-01-01	65.4751132066353
2004-04-01	63.6545667616677
2004-07-01	66.1080897093011
2004-10-01	68.6853143419717
2005-01-01	64.7352272644259
2005-04-01	63.5452684513924
2005-07-01	66.6688296010239
2005-10-01	69.8963900380492
2006-01-01	68.1137847404990
2006-04-01	69.3743308234854
2006-07-01	70.2085930802442
2006-10-01	69.5651987914578
2007-01-01	71.0515531203025
2007-04-01	70.6018131985658
2007-07-01	67.8839816770139
2007-10-01	67.0452006148515
2008-01-01	68.5749466552538
2008-04-01	72.1528472028244
2008-07-01	72.0891210482139
2008-10-01	73.0147880235367
2009-01-01	71.0117296977762
2009-04-01	70.4932006602360
2009-07-01	69.6309267350138
2009-10-01	69.0627183810133
2010-01-01	68.2272046306098
2010-04-01	69.0897783568055
2010-07-01	67.0729485588799
2010-10-01	65.3404910318371
2011-01-01	68.2857931996350
2011-04-01	68.3528667302615
2011-07-01	67.0626560364360
2011-10-01	64.6551375477334
2012-01-01	64.6457820415056
2012-04-01	65.6010686254855
2012-07-01	63.1539543942788
2012-10-01	62.6776056577890
2013-01-01	63.2369887134629
2013-04-01	61.9820262372972
2013-07-01	62.8932968076224
2013-10-01	61.5661834783890
2014-01-01	60.6130287322727
2014-04-01	59.8489795228569
2014-07-01	62.5366053258270
2014-10-01	64.9618664719503
2015-01-01	63.5670737496882
2015-04-01	63.0671067255511
2015-07-01	61.1663309932714
2015-10-01	62.2075099783279
2016-01-01	68.4793860799470
2016-04-01	68.1583452293223
2016-07-01	66.3877390749068
2016-10-01	66.3332218431137
2017-01-01	64.5482965012272
2017-04-01	63.2482913634673
2017-07-01	64.3518928032336
2017-10-01	64.2106801297020
2018-01-01	65.0824988151005
2018-04-01	65.0294182664500