Quarter	Percent
1999-07-01	2.496894518171110
1999-10-01	1.817534229892590
2000-01-01	2.591131782063540
2000-04-01	1.527392275447720
2000-07-01	1.095528005741760
2000-10-01	1.466153455849770
2001-01-01	1.644242788282360
2001-04-01	1.013504418190610
2001-07-01	0.787814614168644
2001-10-01	0.886792472618953
2002-01-01	1.083051755167700
2002-04-01	1.084437594435370
2002-07-01	0.780960496156636
2002-10-01	0.640891135850482
2003-01-01	1.405369291066360
2003-04-01	1.010107321921060
2003-07-01	1.498475096139110
2003-10-01	1.381800076312440
2004-01-01	1.653507286680480
2004-04-01	1.512629893042460
2004-07-01	1.600941481353190
2004-10-01	1.050138772878480
2005-01-01	1.497183378600090
2005-04-01	2.145973198723930
2005-07-01	1.354021116492070
2005-10-01	1.349782808026110
2006-01-01	1.512250914116750
2006-04-01	1.344105796843330
2006-07-01	1.124901505061920
2006-10-01	1.082645041045340
2007-01-01	1.532540173041110
2007-04-01	0.992875419188073
2007-07-01	1.426716246749250
2007-10-01	1.380219737409650
2008-01-01	0.822536629932549
2008-04-01	1.041998356020100
2008-07-01	1.046478334984500
2008-10-01	1.246958140168020
2009-01-01	1.275182706940170
2009-04-01	2.117396349917840
2009-07-01	1.666971846047730
2009-10-01	1.555227279046610
2010-01-01	3.937007055231120
2010-04-01	1.790313813982380
2010-07-01	1.681413493067930
2010-10-01	1.588310395764030
2011-01-01	2.438438690296800
2011-04-01	1.497708818509620
2011-07-01	1.540090441555510
2011-10-01	1.368928721168770
2012-01-01	2.197021938991420
2012-04-01	1.974285080624280
2012-07-01	1.509098536905200
2012-10-01	1.228628241834400
2013-01-01	1.460073213529490
2013-04-01	1.360689997868130
2013-07-01	1.019797425646810
2013-10-01	1.076599077102820
2014-01-01	2.433367459569430
2014-04-01	2.221767692276000
2014-07-01	1.466859347718470
2014-10-01	1.378440536600940
2015-01-01	2.436342640937690
2015-04-01	2.232897865967830
2015-07-01	1.684808324254110
2015-10-01	1.639505913099560
2016-01-01	2.362395394486930
2016-04-01	2.079431113810460
2016-07-01	2.080692919659000
2016-10-01	1.929951394735860
2017-01-01	1.958698246261650
2017-04-01	2.120852662948750
2017-07-01	2.029597783564630
2017-10-01	1.646428885379500
2018-01-01	2.109247297018480
2018-04-01	2.399556352454280
2018-07-01	2.587955224320800