Quarter	Percent
1986-01-01	1.731601731601730
1986-04-01	1.803607214428860
1986-07-01	1.204819277108430
1986-10-01	2.213279678068410
1987-01-01	2.100840336134450
1987-04-01	1.727861771058320
1987-07-01	1.284796573875800
1987-10-01	0.623700623700624
1988-01-01	1.855670103092780
1988-04-01	2.484472049689440
1988-07-01	2.725366876310270
1988-10-01	3.813559322033900
1989-01-01	3.318584070796460
1989-04-01	3.478260869565220
1989-07-01	2.257336343115120
1989-10-01	3.755868544600940
1990-01-01	3.023255813953490
1990-04-01	3.956043956043960
1990-07-01	4.026845637583890
1990-10-01	4.977375565610860
1991-01-01	4.555808656036450
1991-04-01	5.263157894736840
1991-07-01	3.752759381898460
1991-10-01	3.947368421052630
1992-01-01	4.130434782608700
1992-04-01	5.591397849462370
1992-07-01	4.661016949152540
1992-10-01	5.405405405405400
1993-01-01	4.106776180698150
1993-04-01	3.373015873015870
1993-07-01	4.238921001926780
1993-10-01	3.550295857988170
1994-01-01	4.651162790697670
1994-04-01	2.879078694817660
1994-07-01	3.024574669187150
1994-10-01	3.866432337434100
1995-01-01	3.030303030303030
1995-04-01	2.966841186736480
1995-07-01	1.763668430335100
1995-10-01	3.476821192052980
1996-01-01	1.951219512195120
1996-04-01	3.034901365705620
1996-07-01	3.021148036253780
1996-10-01	2.874432677760970
1997-01-01	3.556187766714080
1997-04-01	4.105571847507320
1997-07-01	2.425106990014270
1997-10-01	1.906158357771260
1998-01-01	4.113475177304960
1998-04-01	3.566529492455420
1998-07-01	4.946524064171120
1998-10-01	4.155844155844160
1999-01-01	5.006257822277850
1999-04-01	3.970223325062040
1999-07-01	4.779874213836480
1999-10-01	3.234152652005170
2000-01-01	4.599211563731930
2000-04-01	3.295310519645120
2000-07-01	3.525264394829610
2000-10-01	2.913752913752910
2001-01-01	2.171428571428570
2001-04-01	2.931228861330330
2001-07-01	3.707627118644070
2001-10-01	2.719665271966530
2002-01-01	3.911205073995770
2002-04-01	3.066271018793270
2002-07-01	3.018500486854920
2002-10-01	3.288201160541590
2003-01-01	4.744186046511630
2003-04-01	4.862953138815210
2003-07-01	2.210433244916000
2003-10-01	3.501280956447480
2004-01-01	3.690987124463520
2004-04-01	2.564102564102560
2004-07-01	2.415458937198070
2004-10-01	1.851851851851850
2005-01-01	1.638065522620900
2005-04-01	2.810304449648710
2005-07-01	1.869857890800300
2005-10-01	1.398086828550400
2006-01-01	3.266518188567190
2006-04-01	2.403495994173340
2006-07-01	2.183734939759040
2006-10-01	0.963676797627872
2007-01-01	1.648745519713260
2007-04-01	1.589495507947480
2007-07-01	1.389854065323140
2007-10-01	0.973574408901252
2008-01-01	1.766304347826090
2008-04-01	1.276881720430110
2008-07-01	1.789264413518890
2008-10-01	1.925630810092960
2009-01-01	2.415143603133160
2009-04-01	2.495201535508640
2009-07-01	2.087286527514230
2009-10-01	2.489374620522160
2010-01-01	2.709211318482840
2010-04-01	2.524955960070460
2010-07-01	3.252513305736250
2010-10-01	2.716763005780350
2011-01-01	3.341013824884790
2011-04-01	3.091013165426440
2011-07-01	2.795208214489450
2011-10-01	3.026905829596410
2012-01-01	3.383250138657790
2012-04-01	3.291278113000550
2012-07-01	3.771551724137930
2012-10-01	3.831204886174350
2013-01-01	4.086021505376340
2013-04-01	3.993694167104570
2013-07-01	3.068783068783070
2013-10-01	3.342036553524800
2014-01-01	3.357070193285860
2014-04-01	2.914110429447850
2014-07-01	2.223345123799900
2014-10-01	2.803738317757010
2015-01-01	3.507014028056110
2015-04-01	2.995506739890160
2015-07-01	4.267068273092370
2015-10-01	2.827380952380950
2016-01-01	3.348104382077790
2016-04-01	3.271692745376960
2016-07-01	3.410182516810760
2016-10-01	2.495201535508640
2017-01-01	3.153988868274580
2017-04-01	2.857142857142860
2017-07-01	2.829758101323600
2017-10-01	2.313974591651540
2018-01-01	2.707581227436820
2018-04-01	1.674208144796380
2018-07-01	1.526032315978460