Quarterly Percent
1998-01-01 43
1998-04-01 43.5
1998-07-01 43.9
1998-10-01 43.4
1999-01-01 42.5
1999-04-01 42.8
1999-07-01 43.8
1999-10-01 43.8
2000-01-01 42
2000-04-01 42.2
2000-07-01 43.6
2000-10-01 43.3
2001-01-01 41.8
2001-04-01 41.2
2001-07-01 42.9
2001-10-01 43.4
2002-01-01 42.5
2002-04-01 42.9
2002-07-01 43
2002-10-01 43.3
2003-01-01 43.6
2003-04-01 44.4
2003-07-01 44.3
2003-10-01 45.3
2004-01-01 42.5
2004-04-01 43.8
2004-07-01 44.3
2004-10-01 45.1
2005-01-01 43.9
2005-04-01 44
2005-07-01 44.1
2005-10-01 45.1
2006-01-01 43.7
2006-04-01 44.8
2006-07-01 45.7
2006-10-01 45.6
2007-01-01 45.3
2007-04-01 46.1
2007-07-01 47.1
2007-10-01 46.4
2008-01-01 45.6
2008-04-01 46.7
2008-07-01 47.4
2008-10-01 47.7
2009-01-01 47.5
2009-04-01 48.6
2009-07-01 48.5
2009-10-01 49.1
2010-01-01 49.3
2010-04-01 49.3
2010-07-01 49.2
2010-10-01 50.3
2011-01-01 50
2011-04-01 49.8
2011-07-01 50.2
2011-10-01 52.2
2012-01-01 52.1
2012-04-01 53.6
2012-07-01 53.9
2012-10-01 54.7
2013-01-01 55.1
2013-04-01 55.6
2013-07-01 57
2013-10-01 58.7
2014-01-01 58.9
2014-04-01 59.9
2014-07-01 60.8
2014-10-01 61.3
2015-01-01 62.3
2015-04-01 63.8
2015-07-01 63.7
2015-10-01 63.4
2016-01-01 64.8
2016-04-01 66.1
2016-07-01 66.1
2016-10-01 66.4
2017-01-01 66.2
2017-04-01 67.0
2017-07-01 67.4
2017-10-01 67.6
2018-01-01 67.6
2018-04-01 68.8