Quarter	Percent
1999-07-01	6.24547352643639
1999-10-01	5.02745103942062
2000-01-01	4.86274902694731
2000-04-01	3.68493772699072
2000-07-01	3.51713895986587
2000-10-01	3.53186740251202
2001-01-01	4.62016772800196
2001-04-01	3.18834975862674
2001-07-01	2.56252306763908
2001-10-01	2.39384671700498
2002-01-01	2.97614905257410
2002-04-01	2.26163883106498
2002-07-01	2.16426214703008
2002-10-01	1.83284261232731
2003-01-01	2.93630160826750
2003-04-01	2.75904327754619
2003-07-01	2.66832371848784
2003-10-01	2.08351829799204
2004-01-01	2.94916670090655
2004-04-01	2.54272018651915
2004-07-01	2.78541137451370
2004-10-01	2.59741341556649
2005-01-01	3.05241926133686
2005-04-01	3.35100823430473
2005-07-01	3.41423578002666
2005-10-01	2.51286316357239
2006-01-01	3.54654825178305
2006-04-01	3.32683758806604
2006-07-01	2.69401996167412
2006-10-01	2.67465244809258
2007-01-01	3.19373206066836
2007-04-01	2.66855030019941
2007-07-01	2.49036521712171
2007-10-01	2.47378680852067
2008-01-01	2.92899461138650
2008-04-01	2.52688410500945
2008-07-01	2.33006447545385
2008-10-01	2.44481182785579
2009-01-01	2.80298847833729
2009-04-01	3.16364652201167
2009-07-01	2.67195139438176
2009-10-01	2.54843989304609
2010-01-01	4.48482240266294
2010-04-01	3.24501508778531
2010-07-01	2.93527540762595
2010-10-01	2.80712286844521
2011-01-01	3.28594243844972
2011-04-01	2.99697065629993
2011-07-01	3.00261677832543
2011-10-01	2.55999733020684
2012-01-01	3.09519539151132
2012-04-01	2.84450334061143
2012-07-01	3.30270360021652
2012-10-01	2.74184581537550
2013-01-01	3.56837688771588
2013-04-01	2.73025573223087
2013-07-01	2.59891054755168
2013-10-01	2.18668034076542
2014-01-01	3.33374414435010
2014-04-01	2.78368397234476
2014-07-01	2.73901194672363
2014-10-01	2.85213559760284
2015-01-01	3.59209449903164
2015-04-01	3.21941315556316
2015-07-01	3.54174876849232
2015-10-01	2.96371917669322
2016-01-01	3.69582075285430
2016-04-01	3.39915381166210
2016-07-01	3.09321433386176
2016-10-01	2.70054663415906
2017-01-01	3.14852704744900
2017-04-01	2.74694070061089
2017-07-01	2.90732106069333
2017-10-01	2.42227808325442
2018-01-01	3.47383645248393
2018-04-01	3.26967984358857
2018-07-01	3.26886316245215