Quarter	Percent
1994-01-01	13.82560161039440
1994-04-01	13.68313710948360
1994-07-01	14.00992829564260
1994-10-01	14.81447799199710
1995-01-01	14.46523822439200
1995-04-01	13.80468324559810
1995-07-01	13.23889948242990
1995-10-01	13.59964093357270
1996-01-01	13.58700450251610
1996-04-01	12.38450604122250
1996-07-01	12.28363061242420
1996-10-01	12.38036702080960
1997-01-01	13.10013117621340
1997-04-01	12.48565121412800
1997-07-01	13.01243057392220
1997-10-01	12.74162085476150
1998-01-01	13.08444131372720
1998-04-01	12.53865865512060
1998-07-01	13.36316574537160
1998-10-01	13.58747923406490
1999-01-01	15.63689858082380
1999-04-01	15.90317542946380
1999-07-01	16.80867544539120
1999-10-01	17.32520185535130
2000-01-01	18.11276164753540
2000-04-01	18.61196058443760
2000-07-01	19.07133811734910
2000-10-01	18.41795561533290
2001-01-01	18.75882695023680
2001-04-01	18.55584242525190
2001-07-01	18.88198757763980
2001-10-01	18.65833333333330
2002-01-01	19.21459804910860
2002-04-01	18.78415874884390
2002-07-01	18.54448339175430
2002-10-01	18.27831174258250
2003-01-01	17.80867817054780
2003-04-01	17.27858158400940
2003-07-01	17.84589892294950
2003-10-01	18.04611046608060
2004-01-01	19.65854467097630
2004-04-01	19.62818491161090
2004-07-01	19.05897836637330
2004-10-01	18.39356763925730
2005-01-01	18.21906354515050
2005-04-01	17.10749406578500
2005-07-01	16.98701736638000
2005-10-01	16.58959051542920
2006-01-01	16.13231552162850
2006-04-01	15.02538071065990
2006-07-01	14.30731748298750
2006-10-01	13.48872433524070
2007-01-01	12.72634963614820
2007-04-01	12.68656716417910
2007-07-01	13.08560835861140
2007-10-01	12.22835172183220
2008-01-01	12.09387789192350
2008-04-01	11.29153762450820
2008-07-01	10.41615162752370
2008-10-01	9.92748187046762
2009-01-01	11.39690329131060
2009-04-01	12.26415094339620
2009-07-01	13.30722439796680
2009-10-01	14.31659461257070
2010-01-01	15.36031917546340
2010-04-01	14.66899244123270
2010-07-01	14.33034613171090
2010-10-01	14.04230800888960
2011-01-01	13.90650097218700
2011-04-01	12.87305501232890
2011-07-01	13.35466487032670
2011-10-01	14.37683592110780
2012-01-01	14.46205170975810
2012-04-01	14.04152422246310
2012-07-01	14.58454386984310
2012-10-01	15.00836120401340
2013-01-01	15.04007933228660
2013-04-01	14.43436277366190
2013-07-01	14.52131607157580
2013-10-01	14.10456978180320
2014-01-01	13.92561983471070
2014-04-01	13.44014610659140
2014-07-01	13.62474226804120
2014-10-01	13.54362965997540
2015-01-01	13.33931630904790
2015-04-01	12.69413111002130
2015-07-01	12.86672593550470
2015-10-01	12.67120544653580
2016-01-01	11.62585307105580
2016-04-01	11.01660916312280
2016-07-01	10.56670130285350
2016-10-01	9.81757081132981
2017-01-01	8.74658963248275
2017-04-01	8.29585608737552
2017-07-01	8.17950350095480
2017-10-01	8.41106593318983
2018-01-01	7.35934225374819
2018-04-01	7.18052738336714