Quarter	Percent, Not Seasonally adjusted
1999-01-01	64.0429965040549
1999-04-01	65.7987297912553
1999-07-01	66.8905615633758
1999-10-01	67.0148012200429
2000-01-01	65.9365878851044
2000-04-01	68.2717002814411
2000-07-01	68.1911544246782
2000-10-01	68.0065667629937
2001-01-01	66.2568287833162
2001-04-01	67.5939711539685
2001-07-01	68.2235715658669
2001-10-01	67.4927858541049
2002-01-01	67.2983865753611
2002-04-01	68.4435471685121
2002-07-01	69.7061791193064
2002-10-01	67.6587127652648
2003-01-01	65.9468338149811
2003-04-01	67.5286137895216
2003-07-01	69.0742441305219
2003-10-01	68.4217115619551
2004-01-01	67.4664659114968
2004-04-01	69.5075986972037
2004-07-01	70.1033988577201
2004-10-01	69.1017545737877
2005-01-01	68.3585550826038
2005-04-01	69.9715605425570
2005-07-01	70.6567628698489
2005-10-01	70.2964639925291
2006-01-01	68.8916469623572
2006-04-01	69.4075274834773
2006-07-01	71.2351961312718
2006-10-01	70.5441233477418
2007-01-01	70.5244249411198
2007-04-01	72.4218153386762
2007-07-01	72.9080217645886
2007-10-01	71.9459797582276
2008-01-01	71.7221922201560
2008-04-01	73.5291526479618
2008-07-01	73.8687710106890
2008-10-01	72.1752735644807
2009-01-01	69.0962184290703
2009-04-01	70.6333375695309
2009-07-01	71.6771366430779
2009-10-01	71.1555400049012
2010-01-01	69.6696497996442
2010-04-01	71.7572407494504
2010-07-01	72.7181573746848
2010-10-01	72.1864848072463
2011-01-01	71.0475034442907
2011-04-01	72.4491398939066
2011-07-01	73.2732322214866
2011-10-01	72.8905518627315
2012-01-01	72.0857514257040
2012-04-01	73.8194229784707
2012-07-01	74.5822814576556
2012-10-01	73.7967331927716
2013-01-01	73.0260688520181
2013-04-01	73.4658103668423
2013-07-01	73.9712671587886
2013-10-01	73.8295051209044
2014-01-01	73.3567602478276
2014-04-01	74.1587659160639
2014-07-01	74.8321783949873
2014-10-01	74.6629328938861
2015-01-01	73.7099299950245
2015-04-01	74.2861358131270
2015-07-01	75.1140617381267