Quarter	Net Percent, Seasonally Adjusted
1998-01-01	30
1998-04-01	32
1998-07-01	37
1998-10-01	56
1999-01-01	61
1999-04-01	63
1999-07-01	68
1999-10-01	70
2000-01-01	63
2000-04-01	69
2000-07-01	72
2000-10-01	73
2001-01-01	72
2001-04-01	70
2001-07-01	69
2001-10-01	69
2002-01-01	69
2002-04-01	69
2002-07-01	67
2002-10-01	66
2003-01-01	64
2003-04-01	68
2003-07-01	70
2003-10-01	69
2004-01-01	70
2004-04-01	60
2004-07-01	69
2004-10-01	71
2005-01-01	64
2005-04-01	66
2005-07-01	65
2005-10-01	62
2006-01-01	63
2006-04-01	67
2006-07-01	70
2006-10-01	66
2007-01-01	68
2007-04-01	69
2007-07-01	67
2007-10-01	68
2008-01-01	70
2008-04-01	73
2008-07-01	72
2008-10-01	68
2009-01-01	42
2009-04-01	33
2009-07-01	33
2009-10-01	38
2010-01-01	39
2010-04-01	38
2010-07-01	42
2010-10-01	43
2011-01-01	49
2011-04-01	51
2011-07-01	52
2011-10-01	49
2012-01-01	48
2012-04-01	51
2012-07-01	50
2012-10-01	50
2013-01-01	51
2013-04-01	50
2013-07-01	50
2013-10-01	49
2014-01-01	50
2014-04-01	52
2014-07-01	53
2014-10-01	57
2015-01-01	59
2015-04-01	53
2015-07-01	52
2015-10-01	50
2016-01-01	53
2016-04-01	47
2016-07-01	46
2016-10-01	46
2017-01-01	45
2017-04-01	41
2017-07-01	39
2017-10-01	42
2018-01-01	37
2018-04-01	39
2018-07-01	38