Quarterly Percent
1999-01-01 25.2
1999-04-01 24.8
1999-07-01 24
1999-10-01 24.3
2000-01-01 24.6
2000-04-01 24.6
2000-07-01 23.8
2000-10-01 24.3
2001-01-01 24.7
2001-04-01 25.4
2001-07-01 25.7
2001-10-01 26.1
2002-01-01 26.7
2002-04-01 26.4
2002-07-01 26.9
2002-10-01 27.7
2003-01-01 27.2
2003-04-01 28.1
2003-07-01 29.2
2003-10-01 29.4
2004-01-01 30
2004-04-01 31.1
2004-07-01 32.6
2004-10-01 33
2005-01-01 33.6
2005-04-01 34.4
2005-07-01 35.7
2005-10-01 36.3
2006-01-01 36.2
2006-04-01 36.4
2006-07-01 37
2006-10-01 37.1
2007-01-01 37.5
2007-04-01 38.3
2007-07-01 39.6
2007-10-01 39.8
2008-01-01 40.6
2008-04-01 41.2
2008-07-01 43.1
2008-10-01 42.7
2009-01-01 42
2009-04-01 42.6
2009-07-01 43.5
2009-10-01 43.2
2010-01-01 44.7
2010-04-01 45.5
2010-07-01 45.2
2010-10-01 44.9
2011-01-01 44.7
2011-04-01 45.8
2011-07-01 46.5
2011-10-01 46.8
2012-01-01 47.4
2012-04-01 48.6
2012-07-01 48.5
2012-10-01 49.5
2013-01-01 49.5
2013-04-01 49.7
2013-07-01 49.5
2013-10-01 49.2
2014-01-01 49
2014-04-01 49.7
2014-07-01 50.5
2014-10-01 51.1
2015-01-01 51.2
2015-04-01 51.1
2015-07-01 52.0
2015-10-01 52.9
2016-01-01 52.5
2016-04-01 54.6
2016-07-01 53.8
2016-10-01 54.6
2017-01-01 55.1
2017-04-01 56.4
2017-07-01 56.5
2017-10-01 57.4
2018-01-01 57.0
2018-04-01 56.5
