Quarter	Percent
1999-01-01	6.50651537984221
2000-01-01	9.21421948224444
2000-04-01	9.18219241500982
2000-07-01	8.69968500603842
2000-10-01	8.90044854223773
2001-01-01	9.76377658214827
2001-04-01	10.07140546861390
2001-07-01	9.82682537916713
2001-10-01	9.73254821430780
2002-01-01	10.22426177667700
2002-04-01	10.13488521194490
2002-07-01	10.43849151554210
2002-10-01	9.87984224687627
2003-01-01	9.93507417883381
2003-04-01	9.56641770810224
2003-07-01	9.90635629054859
2003-10-01	9.71984378272493
2004-01-01	10.16311166875780
2004-04-01	9.36501891798929
2004-07-01	9.17725013804528
2004-10-01	9.34448922590682
2005-01-01	9.39545182086193
2005-04-01	9.02855954187264
2005-07-01	9.26042693341333
2005-10-01	8.81665863581192
2006-01-01	6.56489337012301
2006-04-01	5.80268006010580
2006-07-01	5.74457542787538
2006-10-01	5.44323002136421
2007-01-01	4.68744355508765
2007-04-01	3.92641462607545
2007-07-01	3.91457418924578
2007-10-01	3.76372703547712
2008-01-01	3.41011871844038
2008-04-01	3.05446674985890
2008-07-01	3.11898204708757
2008-10-01	3.07514020238810
2009-01-01	3.57048632486149
2009-04-01	3.36225260066594
2009-07-01	3.49423742829087
2009-10-01	3.58225605693597
2010-01-01	4.29828280686877
2010-04-01	4.00565878781135
2010-07-01	3.99059292138521
2010-10-01	4.00963625774342
2011-01-01	4.10756548120146
2011-04-01	4.09939401644207
2011-07-01	4.34559298520582
2011-10-01	4.44292730428892
2012-01-01	4.49551189770514
2012-04-01	4.40835512455403
2012-07-01	4.51388888888889
2012-10-01	4.56912152222916
2013-01-01	4.86387501058515
2013-04-01	4.61350265043397
2013-07-01	4.48237138740571
2013-10-01	4.38045504618253
2014-01-01	4.58882302146077
2014-04-01	3.99479747305834
2014-07-01	3.73579236278117