Quarter	Percent, Seasonally Adjusted
2000-01-01	64.6438018573796
2000-04-01	64.4781421475434
2000-07-01	64.0866010829526
2000-10-01	63.8985709320709
2001-01-01	63.4812049681142
2001-04-01	63.2003623204657
2001-07-01	62.9621308210004
2001-10-01	62.4485586631115
2002-01-01	62.1588463872174
2002-04-01	61.7849743456762
2002-07-01	61.7408599721499
2002-10-01	61.7236048599785
2003-01-01	61.8966968481342
2003-04-01	62.2383675503844
2003-07-01	62.0975344180116
2003-10-01	62.1930098558026
2004-01-01	62.3515449614997
2004-04-01	62.3499705706629
2004-07-01	62.7432874055004
2004-10-01	62.7632009705084
2005-01-01	62.7004810533452
2005-04-01	62.9796184399784
2005-07-01	62.9532212777576
2005-10-01	63.7834678592179
2006-01-01	64.1762245739161
2006-04-01	64.8483318659991
2006-07-01	65.6651151100654
2006-10-01	66.5027394434496
2007-01-01	67.3370496060459
2007-04-01	68.6282134352126
2007-07-01	69.1593696328872
2007-10-01	69.9867848882717
2008-01-01	70.4133723689040
2008-04-01	70.8024009170130
2008-07-01	71.0974750387750
2008-10-01	71.8570668478975
2009-01-01	71.1825680744602
2009-04-01	71.3978647138754
2009-07-01	71.7238208878686
2009-10-01	72.0719449478492
2010-01-01	71.1196981949064
2010-04-01	71.9108732383365
2010-07-01	72.0153165876128
2010-10-01	71.8919788922749
2011-01-01	71.7435330358506
2011-04-01	71.4557410803490
2011-07-01	71.3248373269008
2011-10-01	71.3811521526959
2012-01-01	71.5415969854218
2012-04-01	71.5756769493873
2012-07-01	71.3842248305714
2012-10-01	71.3047147973806
2013-01-01	70.9017006390276
2013-04-01	70.9814323549683
2013-07-01	71.2702706783917
2013-10-01	71.5396894483590
2014-01-01	72.1276703063823
2014-04-01	72.3481671967681
2014-07-01	72.9955925054194
2014-10-01	73.3183374896417
2015-01-01	73.5522894958148
2015-04-01	73.9492281967456
2015-07-01	73.9876744003827
2015-10-01	74.2065040380279
2016-01-01	74.2453031910394
2016-04-01	74.3381601174366
2016-07-01	74.5912660492388
2016-10-01	74.6528231393197
2017-01-01	75.0206853655090
2017-04-01	75.2763350059524
2017-07-01	75.1608604695386
2017-10-01	75.6069706817418
2018-01-01	75.7682418269466
2018-04-01	76.1651962319022