Quarter	Percent
1998-04-01	6.88615333773959
1998-10-01	6.30783212161269
1999-04-01	6.47715905301767
1999-10-01	6.71473824608203
2000-04-01	6.54994331779821
2000-10-01	6.58773145232397
2001-04-01	6.45189077439917
2001-10-01	6.31270722990139
2002-01-01	6.10533671062975
2002-04-01	6.66579303717294
2002-07-01	5.24958475391206
2002-10-01	5.78779539597257
2003-01-01	5.63150467454578
2003-04-01	5.76948524546778
2003-07-01	5.79754871704435
2003-10-01	5.15782049021337
2004-01-01	5.95699211967410
2004-04-01	5.67205378211122
2004-07-01	5.44799038589932
2004-10-01	5.76400943606178
2005-01-01	5.56431628745213
2005-04-01	5.09399089392778
2005-07-01	4.63063063063063
2005-10-01	4.25493554493825
2006-01-01	4.24650675890947
2006-04-01	3.62585869614667
2006-07-01	3.09728475917588
2006-10-01	3.22008459544276
2007-01-01	3.55504587155963
2007-04-01	3.23394495412844
2007-07-01	2.96330275229358
2007-10-01	2.74770642201835
2008-01-01	3.53196800887615
2008-04-01	3.50423004022005
2008-07-01	3.92029957006149
2008-10-01	5.40428089316259
2009-01-01	7.53338018271258
2009-04-01	9.01850550480206
2009-07-01	9.52916373858046
2009-10-01	10.06793159990630
2010-01-01	10.70814220183490
2010-04-01	10.29720948012230
2010-07-01	9.43711773700306
2010-10-01	8.90194954128440
2011-01-01	8.72725498804820
2011-04-01	8.64920240011708
2011-07-01	7.58085760280989
2011-10-01	7.56134445582711
2012-01-01	8.21550826015776
2012-04-01	8.35937887582478
2012-07-01	7.03477700054572
2012-10-01	7.16872550478742
2013-01-01	6.58982711099975
2013-04-01	5.74793284891005
2013-07-01	6.05863192182410
2013-10-01	5.73289902280130
2014-01-01	6.01926977687627
2014-04-01	5.39277916010765
2014-07-01	5.33435036867531