Quarterly Percent
1999-04-01 37.8
2000-04-01 37.4
2001-04-01 37.7
2002-04-01 38.4
2003-04-01 39.4
2004-04-01 41.4
2005-01-01 44.6
2005-04-01 45
2005-07-01 45.6
2005-10-01 46.7
2006-01-01 46.4
2006-04-01 47.9
2006-07-01 48.7
2006-10-01 49.6
2007-01-01 49.4
2007-04-01 51.8
2007-07-01 51.7
2007-10-01 52.3
2008-01-01 52.4
2008-04-01 53.9
2008-07-01 54.1
2008-10-01 54.6
2009-01-01 54.8
2009-04-01 56.7
2009-07-01 55.8
2009-10-01 57
2010-01-01 57.7
2010-04-01 57.5
2010-07-01 57.9
2010-10-01 58.1
2011-01-01 58.8
2011-04-01 60
2011-07-01 60.4
2011-10-01 60.9
2012-01-01 60.6
2012-04-01 61.2
2012-07-01 62.2
2012-10-01 62.4
2013-01-01 62.3
2013-04-01 63.2
2013-07-01 64.2
2013-10-01 64.7
2014-01-01 64.8
2014-04-01 65.3
2014-07-01 66.1
2014-10-01 66
2015-01-01 65.3
2015-04-01 65.7
2015-07-01 66.7
2015-10-01 67.0
2016-01-01 67.8
2016-04-01 68.4
2016-07-01 68.9
2016-10-01 69.2
2017-01-01 68.8
2017-04-01 70.2
2017-07-01 70.5
2017-10-01 71.1
2018-01-01 70.5
2018-04-01 70.8
