Quarterly Percent
1998-01-01 15.6
1998-04-01 15.5
1998-07-01 15.8
1998-10-01 15.8
1999-01-01 15.7
1999-04-01 15.9
1999-07-01 16
1999-10-01 15.7
2000-01-01 15.4
2000-04-01 15.9
2000-07-01 16.2
2000-10-01 16.7
2001-01-01 16.7
2001-04-01 16
2001-07-01 17.2
2001-10-01 17.8
2002-01-01 17.3
2002-04-01 17.7
2002-07-01 18.7
2002-10-01 18.8
2003-01-01 18
2003-04-01 19
2003-07-01 20
2003-10-01 20.1
2004-01-01 19.2
2004-04-01 19.8
2004-07-01 21.3
2004-10-01 21.9
2005-01-01 21.1
2005-04-01 21.3
2005-07-01 21.3
2005-10-01 22.3
2006-01-01 21.8
2006-04-01 22.7
2006-07-01 22.7
2006-10-01 22.7
2007-01-01 23
2007-04-01 23.9
2007-07-01 23.6
2007-10-01 23.3
2008-01-01 23.4
2008-04-01 25.4
2008-07-01 25
2008-10-01 24.6
2009-01-01 25.5
2009-04-01 26.9
2009-07-01 25.8
2009-10-01 25.7
2010-01-01 26.6
2010-04-01 26.9
2010-07-01 26.9
2010-10-01 27.2
2011-01-01 28.2
2011-04-01 28.3
2011-07-01 28.9
2011-10-01 29.9
2012-01-01 31.1
2012-04-01 32.2
2012-07-01 32.4
2012-10-01 33
2013-01-01 33
2013-04-01 34.1
2013-07-01 35.4
2013-10-01 36.1
2014-01-01 37
2014-04-01 37.7
2014-07-01 38.8
2014-10-01 39.6
2015-01-01 39.3
2015-04-01 39.9
2015-07-01 39.3
2015-10-01 39.9
2016-01-01 40.7
2016-04-01 42.1
2016-07-01 41.6
2016-10-01 42.5
2017-01-01 43.5
2017-04-01 44.5
2017-07-01 44.4
2017-10-01 45.7
2018-01-01 45.9
2018-04-01 46.8
