Quarterly Percent
2000-04-01 29.6
2001-04-01 30.1
2002-04-01 30.8
2003-04-01 32.7
2004-04-01 33.6
2005-01-01 35.2
2005-04-01 35.9
2005-07-01 35.9
2005-10-01 36.3
2006-01-01 36.4
2006-04-01 37
2006-07-01 37.6
2006-10-01 37.4
2007-01-01 37.2
2007-04-01 38.1
2007-07-01 38.0
2007-10-01 38.2
2008-01-01 37.8
2008-04-01 38.7
2008-07-01 38.9
2008-10-01 39.0
2009-01-01 39.4
2009-04-01 40.4
2009-07-01 40.0
2009-10-01 40.2
2010-01-01 40.5
2010-04-01 40.8
2010-07-01 41.3
2010-10-01 41.3
2011-01-01 41.9
2011-04-01 42.5
2011-07-01 42.8
2011-10-01 43.1
2012-01-01 43.6
2012-04-01 44.6
2012-07-01 45.0
2012-10-01 45.2
2013-01-01 45.6
2013-04-01 46.3
2013-07-01 46.9
2013-10-01 47.3
2014-01-01 47.6
2014-04-01 48.3
2014-07-01 48.7
2014-10-01 49.1
2015-01-01 49.2
2015-04-01 49.9
2015-07-01 50.3
2015-10-01 50.6
2016-01-01 51.2
2016-04-01 52.1
2016-07-01 52.2
2016-10-01 52.5
2017-01-01 52.9
2017-04-01 53.9
2017-07-01 54.0
2017-10-01 54.3
2018-01-01 54.6
2018-04-01 55.1