Quarterly Percent
1999-04-01 46.9
2000-04-01 46.2
2001-04-01 46.1
2002-04-01 47.1
2003-04-01 47.7
2004-04-01 49.8
2005-01-01 52.6
2005-04-01 52.9
2005-07-01 54
2005-10-01 54.7
2006-01-01 53.9
2006-04-01 56.2
2006-07-01 57
2006-10-01 57.3
2007-01-01 57.6
2007-04-01 59.7
2007-07-01 60
2007-10-01 60.4
2008-01-01 60
2008-04-01 62
2008-07-01 62.2
2008-10-01 62.6
2009-01-01 62.2
2009-04-01 64.4
2009-07-01 63.4
2009-10-01 65
2010-01-01 65.0
2010-04-01 65.0
2010-07-01 65.0
2010-10-01 65.8
2011-01-01 65.5
2011-04-01 67.2
2011-07-01 67.2
2011-10-01 68.5
2012-01-01 67.3
2012-04-01 68.1
2012-07-01 69.2
2012-10-01 69.8
2013-01-01 68.4
2013-04-01 69.6
2013-07-01 70.5
2013-10-01 71.1
2014-01-01 70.9
2014-04-01 70.9
2014-07-01 71.8
2014-10-01 71.9
2015-01-01 70.3
2015-04-01 70.4
2015-07-01 72.2
2015-10-01 72.4
2016-01-01 73.0
2016-04-01 73.4
2016-07-01 73.8
2016-10-01 74.6
2017-01-01 73.2
2017-04-01 75.1
2017-07-01 75.6
2017-10-01 76.1
2018-01-01 75.0
2018-04-01 75.6