Quarterly Percent
1999-04-01 48.1
2000-01-01 46.2
2000-04-01 43.2
2000-07-01 46.1
2000-10-01 44.6
2001-01-01 43.8
2001-04-01 47
2001-07-01 48.4
2001-10-01 48.5
2002-01-01 48.5
2002-04-01 49.6
2002-07-01 50.4
2002-10-01 50.2
2003-01-01 50.1
2003-04-01 51
2003-07-01 48.5
2003-10-01 54
2004-01-01 55.6
2004-04-01 51.8
2004-07-01 51
2004-10-01 53.6
2005-01-01 54.4
2005-04-01 56.7
2005-07-01 55.8
2005-10-01 56
2006-01-01 58.4
2006-04-01 61.8
2006-07-01 57.7
2006-10-01 55.8
2007-01-01 59.7
2007-04-01 62.9
2007-07-01 58.5
2007-10-01 58.7
2008-01-01 61.3
2008-04-01 62.1
2008-07-01 62.1
2008-10-01 63.9
2009-01-01 62.6
2009-04-01 60.7
2009-07-01 58.7
2009-10-01 59.2
2010-01-01 54.2
2010-04-01 52.4
2010-07-01 53
2010-10-01 55.6
2011-01-01 56
2011-04-01 56.5
2011-07-01 58.2
2011-10-01 59.4
2012-01-01 60.3
2012-04-01 60.8
2012-07-01 61.1
2012-10-01 59.7
2013-01-01 62.9
2013-04-01 65.3
2013-07-01 61.7
2013-10-01 60.5
2014-01-01 59.5
2014-04-01 63.7
2014-07-01 66.5
2014-10-01 66.2
2015-01-01 61.8
2015-04-01 62.5
2015-07-01 68.6
2015-10-01 65.3
2016-01-01 61.7
2016-04-01 68.1
2016-07-01 68.1
2016-10-01 63.2
2017-01-01 66.7
2017-04-01 68.3
2017-07-01 67.7
2017-10-01 69.4
2018-01-01 67.7
2018-04-01 66.8
