Quarter	Percent, Seasonally Adjusted
1993-04-01	43.7
1993-07-01	44.4
1993-10-01	45.3
1994-01-01	43.7
1994-04-01	46.6
1994-07-01	48.4
1994-10-01	49.6
1995-01-01	49.9
1995-04-01	49.7
1995-07-01	48.4
1995-10-01	49.3
1996-01-01	52.4
1996-04-01	50.6
1996-07-01	53.3
1996-10-01	54.4
1997-01-01	53.8
1997-04-01	56.7
1997-07-01	56.5
1997-10-01	53.9
1998-01-01	61.8
1998-04-01	61.5
1998-07-01	63.5
1998-10-01	56.6
1999-01-01	56.0
1999-04-01	55.0
1999-07-01	54.4
1999-10-01	59.0
2000-01-01	59.1
2000-04-01	57.1
2000-07-01	57.4
2000-10-01	59.8
2001-01-01	52.1
2001-04-01	64.3
2001-07-01	66.1
2001-10-01	66.9
2002-01-01	70.6
2002-04-01	68.3
2002-07-01	68.8
2002-10-01	72.4
2003-01-01	71.2
2003-04-01	67.1
2003-07-01	65.5
2003-10-01	70.9
2004-01-01	72.7
2004-04-01	72.3
2004-07-01	72.1
2004-10-01	69.6
2005-01-01	70.8
2005-04-01	71.6
2005-07-01	75.3
2005-10-01	70.8
2006-01-01	74.3
2006-04-01	72.7
2006-07-01	71.2
2006-10-01	73.1
2007-01-01	71.4
2007-04-01	72.9
2007-07-01	70.4
2007-10-01	72.4
2008-01-01	70.3
2008-04-01	66.3
2008-07-01	65.9
2008-10-01	62.9
2009-01-01	57.2
2009-04-01	52.3
2009-07-01	52.6
2009-10-01	52.2
2010-01-01	57.9
2010-04-01	60.6
2010-07-01	65.1
2010-10-01	66.1
2011-01-01	66.7
2011-04-01	67.0
2011-07-01	68.5
2011-10-01	68.2
2012-01-01	68.3
2012-04-01	71.4
2012-07-01	72.0
2012-10-01	71.6
2013-01-01	72.1
2013-04-01	72.0
2013-07-01	71.8
2013-10-01	72.2
2014-01-01	72.1
2014-04-01	72.0
2014-07-01	71.5
2014-10-01	73.3
2015-01-01	71.3
2015-04-01	72.2
2015-07-01	71.4
2015-10-01	71.0
2016-01-01	72.3
2016-04-01	73.0
2016-07-01	71.8
2016-10-01	73.1
2017-01-01	74.5
2017-04-01	74.8
2017-07-01	74.5
2017-10-01	74.2
2018-01-01	75.8
2018-04-01	76.3
2018-07-01	77.4
2018-10-01	75.9