Quarter	Percent
1998-04-01	44.5637811282399
1999-04-01	45.7779082635109
2000-04-01	46.5405399307318
2001-01-01	47.7912099054744
2001-04-01	48.8374186868346
2001-07-01	49.3568119462061
2001-10-01	48.3190492771856
2002-01-01	47.8085280622834
2002-04-01	48.7148747367006
2002-07-01	49.1018567223646
2002-10-01	48.0511496372802
2003-01-01	47.4669763390913
2003-04-01	48.5247875827925
2003-07-01	48.8195295953628
2003-10-01	47.5931780736519
2004-01-01	46.9882465445731
2004-04-01	47.8721986540213
2004-07-01	48.3953957728049
2004-10-01	47.2852210788068
2005-01-01	46.7668806190207
2005-04-01	48.2425463157662
2005-07-01	48.8048535213447
2005-10-01	48.0473019974163
2006-01-01	47.6077902853418
2006-04-01	48.7380244466468
2006-07-01	49.8229368291395
2006-10-01	48.8661559063069
2007-01-01	48.6163363350188
2007-04-01	49.7209210699120
2007-07-01	50.6496909873119
2007-10-01	49.5646772945702
2008-01-01	49.2648741730516
2008-04-01	50.2986000065268
2008-07-01	50.7492019370670
2008-10-01	49.3118496139644
2009-01-01	48.1867912517129
2009-04-01	48.7192187180343
2009-07-01	48.8768995980483
2009-10-01	47.8063215679547
2010-01-01	47.2497349851699
2010-04-01	48.4637916657758
2010-07-01	49.2182914465610
2010-10-01	48.3095336975157
2011-01-01	48.2189012391640
2011-04-01	49.3540436020569
2011-07-01	49.9474817777683
2011-10-01	48.9244691221973
2012-01-01	48.3927323549965
2012-04-01	49.4832711002042
2012-07-01	50.0264108686006
2012-10-01	49.0091801202912
2013-01-01	48.5851344227728
2013-04-01	49.6713921597540
2013-07-01	50.3439715566028
2013-10-01	49.4490488345466
2014-01-01	48.8898216159496
2014-04-01	50.0712549249728
2014-07-01	51.0421026199046
2014-10-01	49.8521930786667