Quarter	Percent
1999-01-01	39.0628365544655
1999-04-01	39.0393389335996
1999-07-01	39.5204480256910
1999-10-01	39.3030929046281
2000-01-01	39.5161684132394
2000-04-01	40.2379115351935
2000-07-01	40.3678057641785
2000-10-01	39.7613071461359
2001-01-01	39.5842875101102
2001-04-01	39.3495332930608
2001-07-01	39.8776233996531
2001-10-01	39.2559970380186
2002-01-01	39.2358652531111
2002-04-01	39.3076423174292
2002-07-01	39.8159015296274
2002-10-01	39.5433426772845
2003-01-01	38.8912493481914
2003-04-01	39.1529384499508
2003-07-01	39.3422043685664
2003-10-01	39.8346820139439
2004-01-01	39.5455988303306
2004-04-01	39.8680045794330
2004-07-01	39.8187781956695
2004-10-01	40.0246246188475
2005-01-01	40.3478726763043
2005-04-01	40.2394054033398
2005-07-01	40.4960648700215
2005-10-01	40.6190807070313
2006-01-01	39.9931554380995
2006-04-01	40.0155658273142
2006-07-01	40.5431537039670
2006-10-01	41.1759701280900
2007-01-01	41.0405988351787
2007-04-01	40.9521924367530
2007-07-01	41.3945761239959
2007-10-01	41.6878547638035
2008-01-01	41.6814988290398
2008-04-01	41.2952776530460
2008-07-01	41.6516620175578
2008-10-01	41.4551308296423
2009-01-01	41.0480349344978
2009-04-01	40.7654712554137
2009-07-01	40.8620561993262
2009-10-01	41.1105060592356
2010-01-01	41.1738697910910
2010-04-01	40.8522063759161
2010-07-01	41.1746896760521
2010-10-01	41.6390085123113
2011-01-01	40.6498722161373
2011-04-01	41.3963065205310
2011-07-01	40.8172172062955
2011-10-01	41.2666745259492
2012-01-01	40.8055978536727
2012-04-01	40.9306364656077
2012-07-01	40.9885244420349
2012-10-01	40.8379133255248
2013-01-01	40.3950021604494
2013-04-01	40.9245081015915
2013-07-01	40.9686087370701
2013-10-01	40.5978957942794
2014-01-01	40.3765334193572
2014-04-01	40.6671499789670
2014-07-01	40.6775872243781
2014-10-01	40.8213702590091