Quarterly Percent
1998-04-01 13.4
1999-01-01 16.8
1999-04-01 14.8
1999-07-01 15.8
1999-10-01 15.6
2000-01-01 15.5
2000-04-01 15.4
2000-07-01 18
2000-10-01 17.7
2001-01-01 15.5
2001-04-01 15.6
2001-07-01 15.4
2001-10-01 15.3
2002-01-01 17.5
2002-04-01 16.7
2002-07-01 17.4
2002-10-01 18.5
2003-01-01 19.2
2003-04-01 17.7
2003-07-01 18.8
2003-10-01 18.9
2004-01-01 20.2
2004-04-01 21.2
2004-07-01 21.4
2004-10-01 21.5
2005-01-01 20.5
2005-04-01 23
2005-07-01 22.2
2005-10-01 22.7
2006-01-01 22.2
2006-04-01 22.7
2006-07-01 23.9
2006-10-01 24.1
2007-01-01 23.5
2007-04-01 26.8
2007-07-01 26.3
2007-10-01 27.4
2008-01-01 26.5
2008-04-01 24.4
2008-07-01 28.1
2008-10-01 26.3
2009-01-01 26
2009-04-01 28.1
2009-07-01 28.5
2009-10-01 28.4
2010-01-01 30
2010-04-01 27.8
2010-07-01 30.1
2010-10-01 29.1
2011-01-01 30.5
2011-04-01 33.4
2011-07-01 31.6
2011-10-01 30.9
2012-01-01 31.3
2012-04-01 34.2
2012-07-01 34.3
2012-10-01 32.7
2013-01-01 34.7
2013-04-01 34.5
2013-07-01 37.8
2013-10-01 36.4
2014-01-01 34.8
2014-04-01 37.5
2014-07-01 37.8
2014-10-01 37.7
2015-01-01 38.1
2015-04-01 39.4
2015-07-01 39.0
2015-10-01 40.5
2016-01-01 39.2
2016-04-01 39.5
2016-07-01 39.9
2016-10-01 42.1
2017-01-01 39.9
2017-04-01 42.5
2017-07-01 45.4
2017-10-01 43.2
2018-01-01 43.4
2018-04-01 44.8