Quarter	Percent, Seasonally Adjusted
1999-01-01	36.4984113625795
1999-04-01	36.9465502890977
1999-07-01	37.3365659119169
1999-10-01	37.7658303243596
2000-01-01	38.2442414948917
2000-04-01	38.6632297148723
2000-07-01	39.0390965848810
2000-10-01	39.3892070363962
2001-01-01	39.6487137933747
2001-04-01	39.7623562971421
2001-07-01	40.0659323643936
2001-10-01	40.2778313606723
2002-01-01	40.5288325227602
2002-04-01	40.7534088990707
2002-07-01	40.8439567011026
2002-10-01	41.0250028908180
2003-01-01	41.2685049399237
2003-04-01	41.5853774220696
2003-07-01	41.8441821813172
2003-10-01	42.1023588420721
2004-01-01	42.2213738591289
2004-04-01	42.3562552622077
2004-07-01	42.7042661718352
2004-10-01	43.1690805979159
2005-01-01	43.7559209450027
2005-04-01	44.2242957184512
2005-07-01	44.5334727502759
2005-10-01	44.7867244638418
2006-01-01	45.0247607354144
2006-04-01	45.2169235508073
2006-07-01	45.3264964718611
2006-10-01	45.5905276778555
2007-01-01	45.7898291139197
2007-04-01	45.8990663155269
2007-07-01	45.8984342472928
2007-10-01	45.8602333060692
2008-01-01	45.7758383796273
2008-04-01	45.2746726558275
2008-07-01	44.7539421945061
2008-10-01	43.8057150326550
2009-01-01	42.3718828344279
2009-04-01	41.6233188029380
2009-07-01	41.2682106719787
2009-10-01	41.0147545207223
2010-01-01	40.8145615826005
2010-04-01	40.5715063828628
2010-07-01	40.5060141340419
2010-10-01	40.4037299727744
2011-01-01	40.2034058435647
2011-04-01	40.1429660395733
2011-07-01	39.6366003192868
2011-10-01	39.1434364917614
2012-01-01	38.6894327544080
2012-04-01	38.2350247834951
2012-07-01	37.8867987721896
2012-10-01	37.4411400927877
2013-01-01	37.1866636085362
2013-04-01	37.0631856909951
2013-07-01	37.1118334153786
2013-10-01	37.2027118761673
2014-01-01	37.2331803920499
2014-04-01	37.6239395256967
2014-07-01	37.7940472924137
2014-10-01	38.1844744878336