Quarter	Percent
1999-01-01	50.9491512579570
1999-04-01	51.2548737555362
1999-07-01	51.5571720845647
1999-10-01	50.8645396397593
2000-01-01	50.8448337706961
2000-04-01	51.2684031710079
2000-07-01	51.2729470423812
2000-10-01	51.4577754309207
2001-01-01	50.9099104174883
2001-04-01	51.0693880619456
2001-07-01	51.8661905656832
2001-10-01	51.9177258028127
2002-01-01	50.6242267461478
2002-04-01	51.2827710099366
2002-07-01	51.2551987710293
2002-10-01	50.8820555076969
2003-01-01	50.1465454477570
2003-04-01	50.4815768843096
2003-07-01	51.0090544198637
2003-10-01	50.4604600872451
2004-01-01	50.1796050549982
2004-04-01	50.9977868288419
2004-07-01	51.5640973216111
2004-10-01	50.8753689917012
2005-01-01	50.4794939808202
2005-04-01	50.7629554092890
2005-07-01	51.1902336007114
2005-10-01	51.5978522495834
2006-01-01	51.1851934028548
2006-04-01	51.5898383371824
2006-07-01	52.3760273340105
2006-10-01	52.0881349681940
2007-01-01	51.4574876476315
2007-04-01	51.6458111628931
2007-07-01	51.4940421631531
2007-10-01	51.6516683331482
2008-01-01	51.2945131643858
2008-04-01	52.2160386826020
2008-07-01	52.4808986305367
2008-10-01	52.0509605074242
2009-01-01	50.7624441781941
2009-04-01	50.4933792853256
2009-07-01	50.5510041325310
2009-10-01	49.0578321096604
2010-01-01	48.6660400549490
2010-04-01	49.0113937993174
2010-07-01	49.0771645587890
2010-10-01	48.5573375092248
2011-01-01	48.2115869017632
2011-04-01	48.7739105422120
2011-07-01	48.9865957523269
2011-10-01	48.2748726777132
2012-01-01	47.9410551980065
2012-04-01	48.2635717228163
2012-07-01	48.2695647503268
2012-10-01	48.0552428936414
2013-01-01	47.5541828828507
2013-04-01	48.1318916604218
2013-07-01	48.2646072626097
2013-10-01	47.7283239050770
2014-01-01	47.1487485779295
2014-04-01	47.9904849818931
2014-07-01	48.7335934728627
2014-10-01	48.6903772350247