Quarterly Percent
1999-01-01 76
1999-04-01 75.7
1999-07-01 77.8
1999-10-01 78.1
2000-01-01 77.3
2000-04-01 76.3
2000-07-01 74.6
2000-10-01 75.7
2001-01-01 74.3
2001-04-01 75.4
2001-07-01 72.5
2001-10-01 71.9
2002-01-01 73.2
2002-04-01 73.4
2002-07-01 75.5
2002-10-01 77
2003-01-01 76.1
2003-04-01 76.4
2003-07-01 77.2
2003-10-01 73.4
2004-01-01 72.3
2004-04-01 68.9
2004-07-01 68.8
2004-10-01 70.3
2005-01-01 70.5
2005-04-01 67.5
2005-07-01 66.6
2005-10-01 67.2
2006-01-01 66.7
2006-04-01 65.5
2006-07-01 66.6
2006-10-01 67.5
2007-01-01 68.2
2007-04-01 64
2007-07-01 63.7
2007-10-01 65.9
2008-01-01 67.4
2008-04-01 64.9
2008-07-01 65.5
2008-10-01 65.6
2009-01-01 65.7
2009-04-01 62.3
2009-07-01 61.6
2009-10-01 62.9
2010-01-01 63.9
2010-04-01 63
2010-07-01 62.9
2010-10-01 64.3
2011-01-01 68.3
2011-04-01 66.9
2011-07-01 65.2
2011-10-01 66.4
2012-01-01 66.4
2012-04-01 64.9
2012-07-01 64.9
2012-10-01 63.6
2013-01-01 64.8
2013-04-01 63.2
2013-07-01 63.6
2013-10-01 64.4
2014-01-01 64.1
2014-04-01 60.7
2014-07-01 60.4
2014-10-01 61.1
2015-01-01 62.0
2015-04-01 59.1
2015-07-01 59.4
2015-10-01 60.9
2016-01-01 59.5
2016-04-01 57.8
2016-07-01 60.0
2016-10-01 57.9
2017-01-01 56.2
2017-04-01 53.7
2017-07-01 54.1
2017-10-01 53.4
2018-01-01 53.2
2018-04-01 49.7