Quarterly Percent
1999-01-01 62
1999-04-01 62.3
1999-07-01 60.2
1999-10-01 59.5
2000-01-01 60.6
2000-04-01 60.6
2000-07-01 59.5
2000-10-01 60.5
2001-01-01 63.2
2001-04-01 62.8
2001-07-01 61.2
2001-10-01 62.1
2002-01-01 61.9
2002-04-01 61.5
2002-07-01 59.8
2002-10-01 60.8
2003-01-01 61.4
2003-04-01 60.8
2003-07-01 59
2003-10-01 60.6
2004-01-01 60.8
2004-04-01 60.2
2004-07-01 58.6
2004-10-01 60.4
2005-01-01 59
2005-04-01 56.6
2005-07-01 54.9
2005-10-01 57.4
2006-01-01 57.1
2006-04-01 55.5
2006-07-01 54.8
2006-10-01 56.7
2007-01-01 58.4
2007-04-01 57
2007-07-01 53.8
2007-10-01 57.3
2008-01-01 58.2
2008-04-01 56
2008-07-01 54.1
2008-10-01 56.7
2009-01-01 58.1
2009-04-01 58.4
2009-07-01 56.3
2009-10-01 60.3
2010-01-01 60.5
2010-04-01 60
2010-07-01 57.7
2010-10-01 60.8
2011-01-01 61.5
2011-04-01 60.6
2011-07-01 58.6
2011-10-01 62.4
2012-01-01 62.6
2012-04-01 61.8
2012-07-01 61.1
2012-10-01 63.9
2013-01-01 64
2013-04-01 64.7
2013-07-01 62.6
2013-10-01 65.1
2014-01-01 66.3
2014-04-01 66.8
2014-07-01 65
2014-10-01 65.9
2015-01-01 67.9
2015-04-01 66.3
2015-07-01 64.6
2015-10-01 68.5
2016-01-01 69.6
2016-04-01 68.5
2016-07-01 66.8
2016-10-01 70.0
2017-01-01 70.3
2017-04-01 68.9
2017-07-01 66.6
2017-10-01 68.3
2018-01-01 71.0
2018-04-01 69.3
2018-07-01 67.5