Quarter	Percent
1993-01-01	23.0366541089808
1993-04-01	19.8996601391811
1993-07-01	24.9453938070153
1993-10-01	21.2376305662452
1994-01-01	22.9219143576826
1994-04-01	25.5494467352521
1994-07-01	27.3201187683881
1994-10-01	21.9729403544432
1995-01-01	18.6258201644950
1995-04-01	20.2764161763951
1995-07-01	21.6963305559055
1995-10-01	17.4647068894850
1996-01-01	18.9583236753048
1996-04-01	20.8962438803637
1996-07-01	25.1168367823322
1996-10-01	21.6783122149698
1997-01-01	19.1784548422198
1997-04-01	19.7069633955994
1997-07-01	22.8391940687180
1997-10-01	18.4218449544562
1998-01-01	18.9159306595764
1998-04-01	20.2709669785407
1998-07-01	21.9498602274703
1998-10-01	20.2424632550156
1999-01-01	22.2568439795237
1999-04-01	20.8852022379758
1999-07-01	22.8981513472562
1999-10-01	18.2242327982302
2000-01-01	17.5847571202108
2000-04-01	17.8001834412366
2000-07-01	19.0994720422366
2000-10-01	17.0917129768154
2001-01-01	15.2247893100907
2001-04-01	16.3001015470999
2001-07-01	18.1350161137322
2001-10-01	16.0695862431740
2002-01-01	16.7687217764259
2002-04-01	15.9200520424415
2002-07-01	17.7116658442615
2002-10-01	16.0499758331732
2003-01-01	14.5993244825363
2003-04-01	15.2154985405187
2003-07-01	16.9025131922839
2003-10-01	14.8399512442971
2004-01-01	14.9488759537750
2004-04-01	13.0768317045516
2004-07-01	14.7331080324970
2004-10-01	13.8477833943648
2005-01-01	12.5212680749015
2005-04-01	12.8019918688428
2005-07-01	13.8638397466786
2005-10-01	13.7533342078797
2006-01-01	12.9805130244581
2006-04-01	12.9876020007198
2006-07-01	13.6038858648494
2006-10-01	12.8570053243827
2007-01-01	12.0042366459422
2007-04-01	12.2949682126383
2007-07-01	13.1786258742003
2007-10-01	12.7367695415714
2008-01-01	11.8928718743835
2008-04-01	12.2848825571847
2008-07-01	13.0459348924707
2008-10-01	13.9188406369519
2009-01-01	14.1816984026367
2009-04-01	15.1250511407738
2009-07-01	14.0654518746238
2009-10-01	13.8726342799084
2010-01-01	13.3157288741899
2010-04-01	13.2826107032742
2010-07-01	13.6377587559254
2010-10-01	14.2282180084163
2011-01-01	12.4092425431711
2011-04-01	12.7531379015802
2011-07-01	13.1598595290090
2011-10-01	14.4438327909748
2012-01-01	12.4223179733360
2012-04-01	13.2265878779144
2012-07-01	14.3379568397373
2012-10-01	14.7667590146224
2013-01-01	13.1322490689812
2013-04-01	13.7785624468126
2013-07-01	13.6674212941748
2013-10-01	14.1300412759854
2014-01-01	12.7495721253316
2014-04-01	13.8226688307595
2014-07-01	14.4783697391393
2014-10-01	15.4340090360242
2015-01-01	13.1751681658597
2015-04-01	13.9150365558504
2015-07-01	14.3188438587064
2015-10-01	14.6385875581138
2016-01-01	13.2526754605033
2016-04-01	14.0430004493063
2016-07-01	14.3499197820787
2016-10-01	14.8521803644650
2017-01-01	13.4230499605328
2017-04-01	13.3149587112495
2017-07-01	14.3449441526996
2017-10-01	14.5619819698032
2018-01-01	13.2407288705777
2018-04-01	13.4624526472136