Quarter	Percent
1972-01-01	0.036765
1972-04-01	1.437500
1972-07-01	0.396552
1972-10-01	3.266130
1973-01-01	1.257810
1973-04-01	1.064660
1973-07-01	3.035710
1973-10-01	3.782260
1974-01-01	5.508620
1974-04-01	9.750000
1974-07-01	4.517240
1974-10-01	4.852940
1975-01-01	1.163790
1975-04-01	0.577586
1975-07-01	1.587500
1975-10-01	1.035710
1976-01-01	0.979839
1976-04-01	0.366667
1976-07-01	0.636719
1976-10-01	0.363636
1977-01-01	1.825760
1977-04-01	2.355470
1977-07-01	1.480470
1977-10-01	0.583333
1978-01-01	0.431818
1978-04-01	0.869141
1978-07-01	0.224138
1978-10-01	-0.155242
1979-01-01	0.001953
1979-04-01	0.906250
1979-07-01	1.205360
1979-10-01	7.387100
1980-01-01	3.329740
1980-04-01	3.441810
1980-07-01	1.406250
1980-10-01	0.987500
1981-01-01	5.049580
1981-04-01	6.875000
1981-07-01	9.579170
1981-10-01	5.851100
1982-01-01	3.542340
1982-04-01	2.625000
1982-07-01	2.623050
1982-10-01	1.043560
1983-01-01	4.101790
1983-04-01	4.343750
1983-07-01	3.005860
1983-10-01	2.460230
1984-01-01	3.056640
1984-04-01	3.838360
1984-07-01	3.977680
1984-10-01	4.850810
1985-01-01	4.491380
1985-04-01	4.573660
1985-07-01	3.775860
1985-10-01	4.365810
1986-01-01	4.797410
1986-04-01	5.467670
1986-07-01	2.368750
1986-10-01	2.632140
1987-01-01	2.087500
1987-04-01	4.447920
1987-07-01	2.408330
1987-10-01	0.290440
1988-01-01	0.985710
1988-04-01	2.537880
1988-07-01	2.405170
1988-10-01	3.984850
1989-01-01	4.992430
1989-04-01	6.937500
1989-07-01	7.140630
1989-10-01	8.566530
1990-01-01	8.751950
1990-04-01	8.703130
1990-07-01	6.618300
1990-10-01	8.909270
1991-01-01	8.731250
1991-04-01	7.470980
1991-07-01	7.801720
1991-10-01	7.625000
1992-01-01	8.470830
1992-04-01	8.950000
1992-07-01	7.050000
1992-10-01	5.926470
1993-01-01	5.330650
1993-04-01	5.087500
1993-07-01	4.767580
1993-10-01	4.401520
1994-01-01	4.100000
1994-04-01	3.976560
1994-07-01	3.527340
1994-10-01	3.564390
1995-01-01	3.534090
1995-04-01	3.037110
1995-07-01	2.836210
1995-10-01	2.346770
1996-01-01	1.797410
1996-04-01	2.415180
1996-07-01	1.426720
1996-10-01	1.786760
1997-01-01	2.049570
1997-04-01	1.051720
1997-07-01	1.112500
1997-10-01	1.000000
1998-01-01	0.889580
1998-04-01	1.866380
1998-07-01	1.233330
1998-10-01	1.036760
1999-01-01	1.007140
1999-04-01	0.883330
1999-07-01	0.843750
1999-10-01	1.357010
2000-01-01	1.612420
2000-04-01	2.968620
2000-07-01	3.231720
2000-10-01	3.500000
2001-01-01	3.350000
2001-04-01	3.250000
2001-07-01	2.120000
2001-10-01	1.650000
2002-01-01	1.320000
2002-04-01	1.020000
2002-07-01	0.650000
2002-10-01	0.440000
2003-01-01	0.170000
2003-04-01	0.130000
2003-07-01	0.110000
2003-10-01	0.090000
2004-01-01	0.100000
2004-04-01	0.360000
2004-07-01	0.540000
2004-10-01	0.550000
2005-01-01	0.750000
2005-04-01	0.580000
2005-07-01	0.630000
2005-10-01	0.630000
2006-01-01	1.030000
2006-04-01	1.270000
2006-07-01	1.610000
2006-10-01	1.940000
2007-01-01	1.980000
2007-04-01	2.560000
2007-07-01	2.200000
2007-10-01	2.000000
2008-01-01	2.620000
2008-04-01	1.820000
2008-07-01	1.700000
2008-10-01	0.010000
2009-01-01	0.050000
2009-04-01	0.050000
2009-07-01	0.050000
2009-10-01	0.050000
2010-01-01	0.050000
2010-04-01	0.030000
2010-07-01	0.080000
2010-10-01	0.040000
2011-01-01	0.040000
2011-04-01	0.090000
2011-07-01	0.020000
2011-10-01	0.070000
2012-01-01	0.050000
2012-04-01	0.000000
2012-07-01	0.010000
2012-10-01	-0.200000
2013-01-01	-0.100000
2013-04-01	-0.030000
2013-07-01	-0.050000
2013-10-01	0.010000
2014-01-01	-0.150000
2014-04-01	-0.150000
2014-07-01	-0.100000
2014-10-01	-2.000000
2015-01-01	-1.500000
2015-04-01	-1.150000
2015-07-01	-1.000000
2015-10-01	-1.000000
2016-01-01	-1.100000
2016-04-01	-1.750000
2016-07-01	-0.950000
2016-10-01	-0.900000
2017-01-01	-0.950000
2017-04-01	-1.180000
2017-07-01	-0.900000
2017-10-01	-1.000000
2018-01-01	-1.000000
2018-04-01	-0.900000
2018-07-01	-0.900000