Quarter	Net Percent, Seasonally Adjusted
1975-01-01	20
1975-04-01	23
1975-07-01	18
1975-10-01	22
1976-01-01	3
1976-04-01	5
1976-07-01	3
1976-10-01	5
1977-01-01	6
1977-04-01	2
1977-07-01	2
1977-10-01	2
1978-01-01	4
1978-04-01	6
1978-07-01	9
1978-10-01	6
1979-01-01	18
1979-04-01	24
1979-07-01	23
1979-10-01	20
1980-01-01	36
1980-04-01	59
1980-07-01	77
1980-10-01	80
1981-01-01	77
1981-04-01	77
1981-07-01	62
1981-10-01	71
1982-01-01	59
1982-04-01	62
1982-07-01	37
1982-10-01	27
1983-01-01	33
1983-04-01	36
1983-07-01	29
1983-10-01	50
1984-01-01	37
1984-04-01	43
1984-07-01	17
1984-10-01	24
1985-01-01	5
1985-04-01	9
1985-07-01	1
1985-10-01	6
1986-01-01	5
1986-04-01	3
1986-07-01	1
1986-10-01	6
1987-01-01	12
1987-04-01	13
1987-07-01	30
1987-10-01	59
1988-01-01	62
1988-04-01	66
1988-07-01	42
1988-10-01	43
1989-01-01	53
1989-04-01	48
1989-07-01	53
1989-10-01	54
1990-01-01	44
1990-04-01	42
1990-07-01	36
1990-10-01	24
1991-01-01	24
1991-04-01	23
1991-07-01	27
1991-10-01	24
1992-01-01	22
1992-04-01	15
1992-07-01	11
1992-10-01	11
1993-01-01	12
1993-04-01	14
1993-07-01	17
1993-10-01	23
1994-01-01	32
1994-04-01	35
1994-07-01	41
1994-10-01	45
1995-01-01	58
1995-04-01	41
1995-07-01	36
1995-10-01	41
1996-01-01	51
1996-04-01	39
1996-07-01	39
1996-10-01	35
1997-01-01	52
1997-04-01	37
1997-07-01	33
1997-10-01	30
1998-01-01	29
1998-04-01	25
1998-07-01	12
1998-10-01	9
1999-01-01	10
1999-04-01	16
1999-07-01	13
1999-10-01	16
2000-01-01	20
2000-04-01	22
2000-07-01	32
2000-10-01	17
2001-01-01	25
2001-04-01	24
2001-07-01	35
2001-10-01	38
2002-01-01	45
2002-04-01	46
2002-07-01	59
2002-10-01	53
2003-01-01	55
2003-04-01	51
2003-07-01	65
2003-10-01	70
2004-01-01	74
2004-04-01	78
2004-07-01	79
2004-10-01	93
2005-01-01	91
2005-04-01	90
2005-07-01	94
2005-10-01	92
2006-01-01	94
2006-04-01	87
2006-07-01	87
2006-10-01	90
2007-01-01	90
2007-04-01	88
2007-07-01	83
2007-10-01	83
2008-01-01	68
2008-04-01	47
2008-07-01	41
2008-10-01	42
2009-01-01	33
2009-04-01	23
2009-07-01	24
2009-10-01	23
2010-01-01	26
2010-04-01	20
2010-07-01	25
2010-10-01	20
2011-01-01	18
2011-04-01	21
2011-07-01	20
2011-10-01	19
2012-01-01	31
2012-04-01	24
2012-07-01	26
2012-10-01	28
2013-01-01	30
2013-04-01	45
2013-07-01	43
2013-10-01	47
2014-01-01	49
2014-04-01	45
2014-07-01	53
2014-10-01	66
2015-01-01	49
2015-04-01	48
2015-07-01	45
2015-10-01	39
2016-01-01	43
2016-04-01	38
2016-07-01	44
2016-10-01	48
2017-01-01	42
2017-04-01	36
2017-07-01	44
2017-10-01	34
2018-01-01	41