Quarterly Percent
1999-01-01 25
2000-01-01 26.1
2001-01-01 26.7
2002-01-01 29.6
2003-01-01 33.3
2003-04-01 34.2
2003-07-01 33
2003-10-01 32.9
2004-01-01 32.7
2004-04-01 34
2004-07-01 35.1
2004-10-01 34.9
2005-01-01 35.9
2005-04-01 36.6
2005-07-01 35.5
2005-10-01 34.9
2006-01-01 35.8
2006-04-01 35.9
2006-07-01 35.9
2006-10-01 35.7
2007-01-01 35.7
2007-04-01 37.0
2007-07-01 35.8
2007-10-01 35.7
2008-01-01 35.4
2008-04-01 36.2
2008-07-01 35.9
2008-10-01 36
2009-01-01 36.3
2009-04-01 37.1
2009-07-01 36.5
2009-10-01 36.1
2010-01-01 36.7
2010-04-01 37.5
2010-07-01 37.9
2010-10-01 37.3
2011-01-01 37.4
2011-04-01 39.1
2011-07-01 39.2
2011-10-01 39.9
2012-01-01 40.5
2012-04-01 41.3
2012-07-01 42
2012-10-01 42.7
2013-01-01 42.4
2013-04-01 43.1
2013-07-01 43.4
2013-10-01 43.1
2014-01-01 43.8
2014-04-01 45.6
2014-07-01 45.4
2014-10-01 45.9
2015-01-01 46.1
2015-04-01 47.5
2015-07-01 47.1
2015-10-01 46.8
2016-01-01 47.6
2016-04-01 48.3
2016-07-01 48.3
2016-10-01 48.4
2017-01-01 49.3
2017-04-01 50.5
2017-07-01 49.8
2017-10-01 50.1
2018-01-01 50.6
2018-04-01 50.1
