Quarter	Percent
1986-01-01	0.998003992015968
1986-04-01	1.105527638190950
1986-07-01	1.700000000000000
1986-10-01	2.089864158829680
1987-01-01	1.859504132231400
1987-04-01	1.691331923890060
1987-07-01	2.408376963350790
1987-10-01	2.481121898597630
1988-01-01	2.023429179978700
1988-04-01	2.362204724409450
1988-07-01	3.383897316219370
1988-10-01	3.621495327102800
1989-01-01	4.561824729891960
1989-04-01	4.337349397590360
1989-07-01	4.161566707466340
1989-10-01	4.227053140096620
1990-01-01	4.665071770334930
1990-04-01	5.097087378640780
1990-07-01	4.993909866017050
1990-10-01	5.896805896805900
1991-01-01	5.392156862745100
1991-04-01	5.630354957160340
1991-07-01	7.090464547677260
1991-10-01	6.012269938650310
1992-01-01	7.195121951219510
1992-04-01	7.142857142857140
1992-07-01	8.074534161490680
1992-10-01	8.508014796547470
1993-01-01	7.160194174757280
1993-04-01	6.728538283062640
1993-07-01	6.380510440835270
1993-10-01	6.766055045871560
1994-01-01	6.455266138165350
1994-04-01	5.895439377085650
1994-07-01	5.420353982300880
1994-10-01	4.520990312163620
1995-01-01	3.944562899786780
1995-04-01	3.636363636363640
1995-07-01	3.946002076843200
1995-10-01	3.176229508196720
1996-01-01	4.407443682664060
1996-04-01	4.129793510324480
1996-07-01	4.775828460038990
1996-10-01	4.026845637583890
1997-01-01	4.889741131351870
1997-04-01	4.717853839037930
1997-07-01	4.257332071901610
1997-10-01	5.253283302063790
1998-01-01	4.235727440147330
1998-04-01	4.886877828054300
1998-07-01	5.234657039711190
1998-10-01	5.829596412556050
1999-01-01	6.320346320346320
1999-04-01	4.052863436123350
1999-07-01	7.142857142857140
1999-10-01	5.212858384013900
2000-01-01	5.081826012058570
2000-04-01	5.792163543441230
2000-07-01	6.141078838174270
2000-10-01	5.212510024057740
2001-01-01	4.614160700079550
2001-04-01	4.123711340206180
2001-07-01	4.851330203442880
2001-10-01	3.062787136294030
2002-01-01	3.631082062454610
2002-04-01	3.357142857142860
2002-07-01	2.911931818181820
2002-10-01	3.087719298245610
2003-01-01	3.543586109142450
2003-04-01	3.328710124826630
2003-07-01	3.500343170899110
2003-10-01	3.420523138833000
2004-01-01	2.955003357958360
2004-04-01	2.268308489954630
2004-07-01	2.359693877551020
2004-10-01	1.799007444168730
2005-01-01	2.043343653250770
2005-04-01	1.965601965601970
2005-07-01	1.950030469226080
2005-10-01	1.446654611211570
2006-01-01	2.482269503546100
2006-04-01	2.090592334494770
2006-07-01	1.919720767888310
2006-10-01	1.225204200700120
2007-01-01	1.971830985915490
2007-04-01	1.526286037309210
2007-07-01	1.139601139601140
2007-10-01	1.391207568169170
2008-01-01	2.266445550027640
2008-04-01	2.144035184167120
2008-07-01	2.471169686985170
2008-10-01	1.994609164420480
2009-01-01	3.289124668435010
2009-04-01	3.319283456269760
2009-07-01	4.368421052631580
2009-10-01	3.876375065479310
2010-01-01	2.722513089005240
2010-04-01	4.356740133264990
2010-07-01	3.991915108640730
2010-10-01	3.734015345268540
2011-01-01	2.741116751269040
2011-04-01	3.387259858442870
2011-07-01	2.590931738913800
2011-10-01	3.244837758112090
2012-01-01	3.328438570729320
2012-04-01	3.546798029556650
2012-07-01	4.853888063397720
2012-10-01	4.139970428782650
2013-01-01	3.366336633663370
2013-04-01	3.265107212475630
2013-07-01	4.631886884446610
2013-10-01	3.257170636849780
2014-01-01	3.467933491686460
2014-04-01	3.349056603773580
2014-07-01	2.857142857142860
2014-10-01	2.679830747531730
2015-01-01	4.022191400832180
2015-04-01	3.117729176361100
2015-07-01	2.838529548627270
2015-10-01	2.954755309325950
2016-01-01	3.336380255941500
2016-04-01	3.479036574487060
2016-07-01	3.311258278145700
2016-10-01	2.536073458679490
2017-01-01	2.932426689332770
2017-04-01	2.901023890784980
2017-07-01	2.888237756383420
2017-10-01	2.725020644095790
2018-01-01	2.860696517412940
2018-04-01	3.300733496332520
2018-07-01	2.615447486718430