Quarterly Percent
2000-04-01 37.3
2001-04-01 37.4
2002-04-01 38.9
2003-04-01 40.6
2004-04-01 41.6
2005-01-01 43.2
2005-04-01 43.8
2005-07-01 43.7
2005-10-01 44.3
2006-01-01 44.4
2006-04-01 44.8
2006-07-01 45
2006-10-01 45.5
2007-01-01 45.6
2007-04-01 46.4
2007-07-01 46.2
2007-10-01 46.4
2008-01-01 46.3
2008-04-01 47.2
2008-07-01 47.3
2008-10-01 47.6
2009-01-01 47.9
2009-04-01 48.9
2009-07-01 48.3
2009-10-01 48.8
2010-01-01 49.1
2010-04-01 49.3
2010-07-01 49.4
2010-10-01 49.7
2011-01-01 49.9
2011-04-01 50.7
2011-07-01 50.7
2011-10-01 51.4
2012-01-01 51.7
2012-04-01 52.7
2012-07-01 53.1
2012-10-01 53.5
2013-01-01 53.7
2013-04-01 54.4
2013-07-01 55
2013-10-01 55.4
2014-01-01 55.6
2014-04-01 56.2
2014-07-01 56.6
2014-10-01 57.2
2015-01-01 57.3
2015-04-01 58.0
2015-07-01 58.2
2015-10-01 58.5
2016-01-01 59.1
2016-04-01 59.8
2016-07-01 60.0
2016-10-01 60.3
2017-01-01 60.4
2017-04-01 61.3
2017-07-01 61.4
2017-10-01 62.0
2018-01-01 62.1
2018-04-01 62.5