Quarter	Net Percent, Seasonally Adjusted
1991-01-01	93.3
1991-04-01	92.5
1991-07-01	92.3
1991-10-01	93.3
1992-01-01	93.3
1992-04-01	91.9
1992-07-01	88.8
1992-10-01	82.1
1993-01-01	77.8
1993-04-01	76.1
1993-07-01	75.6
1993-10-01	77.5
1994-01-01	79.3
1994-04-01	81.1
1994-07-01	83.9
1994-10-01	87.2
1995-01-01	88.6
1995-04-01	89.5
1995-07-01	90
1995-10-01	92.9
1996-01-01	90.2
1996-04-01	88.2
1996-07-01	88.4
1996-10-01	88.1
1997-01-01	90.1
1997-04-01	89.9
1997-07-01	91.8
1997-10-01	91.2
1998-01-01	92.6
1998-04-01	94.1
1998-07-01	94.2
1998-10-01	93.5
1999-01-01	93.2
1999-04-01	93.5
1999-07-01	92
1999-10-01	92.4
2000-01-01	40.4
2000-04-01	52.1
2000-07-01	40.8
2000-10-01	43.7
2001-01-01	41.5
2001-04-01	28.9
2001-07-01	30.5
2001-10-01	17.1
2002-01-01	49.4
2002-04-01	29.8
2002-07-01	36.7
2002-10-01	38.9
2003-01-01	35.2
2003-04-01	29.8
2003-07-01	30.4
2003-10-01	30
2004-01-01	3.7
2004-04-01	35.7
2004-07-01	20.3
2004-10-01	36.1
2005-01-01	8.7
2005-04-01	28
2005-07-01	2.6
2005-10-01	25.9
2006-01-01	8.2
2006-04-01	25.4
2006-07-01	8.8
2006-10-01	24.3
2007-01-01	50.8
2007-04-01	45.9
2007-07-01	49.6
2007-10-01	53.5
2008-01-01	39.8
2008-04-01	30.9
2008-07-01	37.6
2008-10-01	5.3
2009-01-01	-22.9
2009-04-01	-32.7
2009-07-01	13.6
2009-10-01	2.7
2010-01-01	10.6
2010-04-01	25.9
2010-07-01	31.1
2010-10-01	26.5
2011-01-01	35.1
2011-04-01	35
2011-07-01	10.3
2011-10-01	5.8
2012-01-01	10.5
2012-04-01	-5.5
2012-07-01	-3.7
2012-10-01	-6.6
2013-01-01	8.9
2013-04-01	8.7
2013-07-01	20.5
2013-10-01	31.9
2014-01-01	13.9
2014-04-01	39.2
2014-07-01	4.6
2014-10-01	27.3
2015-01-01	24.3
2015-04-01	22.8
2015-07-01	37.4
2015-10-01	26.9
2016-01-01	30.1
2016-04-01	25.7
2016-07-01	18.3
2016-10-01	27.6
2017-01-01	18.1
2017-04-01	26.6
2017-07-01	4.7
2017-10-01	15.4
2018-01-01	10.3
2018-04-01	18.4
2018-07-01	12.5
2018-10-01	21.5