Quarterly Percent
1999-01-01 24.5
2000-01-01 20.7
2000-04-01 21.8
2000-07-01 23
2000-10-01 19.8
2001-01-01 18.2
2001-04-01 21.9
2001-07-01 22
2001-10-01 19.4
2002-01-01 18.8
2002-04-01 19.5
2002-07-01 18.2
2002-10-01 19.2
2003-01-01 19.9
2003-04-01 20.1
2003-07-01 19.4
2003-10-01 19.7
2004-01-01 18.6
2004-04-01 19.1
2004-07-01 20.3
2004-10-01 19.5
2005-01-01 17.9
2005-04-01 19.2
2005-07-01 21.4
2005-10-01 20.1
2006-01-01 17.7
2006-04-01 18.3
2006-07-01 20.6
2006-10-01 19.4
2007-01-01 18.8
2007-04-01 18.5
2007-07-01 20.1
2007-10-01 20.2
2008-01-01 19.9
2008-04-01 20.8
2008-07-01 21.1
2008-10-01 20.9
2009-01-01 20.9
2009-04-01 21.6
2009-07-01 22.2
2009-10-01 22.8
2010-01-01 22.3
2010-04-01 23.7
2010-07-01 25.2
2010-10-01 25.5
2011-01-01 26
2011-04-01 27
2011-07-01 27.8
2011-10-01 28
2012-01-01 27.7
2012-04-01 28.5
2012-07-01 30.2
2012-10-01 30.4
2013-01-01 29.7
2013-04-01 30.4
2013-07-01 31.5
2013-10-01 32.4
2014-01-01 32.2
2014-04-01 32.2
2014-07-01 33.3
2014-10-01 34
2015-01-01 34.1
2015-04-01 34.3
2015-07-01 36.5
2015-10-01 37.3
2016-01-01 36.2
2016-04-01 37.2
2016-07-01 38.4
2016-10-01 38.8
2017-01-01 38.0
2017-04-01 40.0
2017-07-01 40.7
2017-10-01 38.5
2018-01-01 38.4
2018-04-01 40.1