Quarterly Percent
2000-04-01 26.6
2001-04-01 26.9
2002-04-01 28.2
2003-04-01 30.2
2004-04-01 31.3
2005-01-01 33.6
2005-04-01 34.3
2005-07-01 34.1
2005-10-01 34.8
2006-01-01 35.3
2006-04-01 35.7
2006-07-01 35.7
2006-10-01 36.3
2007-01-01 36.6
2007-04-01 37.7
2007-07-01 37.1
2007-10-01 37.6
2008-01-01 37.4
2008-04-01 38.4
2008-07-01 38.4
2008-10-01 38.8
2009-01-01 39.4
2009-04-01 40.4
2009-07-01 39.8
2009-10-01 40.3
2010-01-01 40.8
2010-04-01 40.9
2010-07-01 41.1
2010-10-01 41.4
2011-01-01 42.1
2011-04-01 43.0
2011-07-01 43.2
2011-10-01 43.6
2012-01-01 44.3
2012-04-01 45.3
2012-07-01 45.7
2012-10-01 45.9
2013-01-01 46.5
2013-04-01 47.0
2013-07-01 47.7
2013-10-01 48.1
2014-01-01 48.5
2014-04-01 49.4
2014-07-01 49.7
2014-10-01 50.2
2015-01-01 50.5
2015-04-01 51.2
2015-07-01 51.2
2015-10-01 51.6
2016-01-01 52.4
2016-04-01 53.2
2016-07-01 53.2
2016-10-01 53.6
2017-01-01 54.2
2017-04-01 54.9
2017-07-01 54.8
2017-10-01 55.5
2018-01-01 55.9
2018-04-01 56.2