Quarterly Percent
1999-04-01 28.7
2000-04-01 28.7
2001-04-01 29.3
2002-04-01 29.8
2003-04-01 31.2
2004-04-01 33.1
2005-01-01 36.9
2005-04-01 37.3
2005-07-01 37.3
2005-10-01 38.8
2006-01-01 39.1
2006-04-01 39.7
2006-07-01 40.5
2006-10-01 41.9
2007-01-01 41.5
2007-04-01 44
2007-07-01 43.6
2007-10-01 44.5
2008-01-01 44.9
2008-04-01 46
2008-07-01 46.2
2008-10-01 46.9
2009-01-01 47.4
2009-04-01 49.2
2009-07-01 48.4
2009-10-01 49.4
2010-01-01 50.7
2010-04-01 50.4
2010-07-01 50.9
2010-10-01 50.8
2011-01-01 52.3
2011-04-01 53.1
2011-07-01 53.8
2011-10-01 53.7
2012-01-01 54.3
2012-04-01 54.6
2012-07-01 55.6
2012-10-01 55.3
2013-01-01 56.6
2013-04-01 57.2
2013-07-01 58.2
2013-10-01 58.6
2014-01-01 58.9
2014-04-01 60.1
2014-07-01 60.4
2014-10-01 60.5
2015-01-01 60.5
2015-04-01 61.1
2015-07-01 61.5
2015-10-01 61.7
2016-01-01 62.7
2016-04-01 63.4
2016-07-01 64.0
2016-10-01 64.1
2017-01-01 64.6
2017-04-01 65.3
2017-07-01 65.4
2017-10-01 66.2
2018-01-01 66.1
2018-04-01 66.2