Quarterly Percent
1999-01-01 10.3
1999-04-01 11.1
1999-07-01 11.8
1999-10-01 11.9
2000-01-01 11.9
2000-04-01 13
2000-07-01 13.7
2000-10-01 14.6
2001-01-01 14.1
2001-04-01 14.2
2001-07-01 15.4
2001-10-01 15.7
2002-01-01 16.2
2002-04-01 17
2002-07-01 17.8
2002-10-01 19.5
2003-01-01 20.2
2003-04-01 21.2
2003-07-01 22.3
2003-10-01 23.4
2004-01-01 24
2004-04-01 24.5
2004-07-01 25.3
2004-10-01 26.4
2005-01-01 26.1
2005-04-01 26.7
2005-07-01 27.1
2005-10-01 27.1
2006-01-01 26.7
2006-04-01 26.9
2006-07-01 26.4
2006-10-01 26.5
2007-01-01 25.9
2007-04-01 26.7
2007-07-01 25.5
2007-10-01 25.1
2008-01-01 24.8
2008-04-01 24.7
2008-07-01 25.7
2008-10-01 25.8
2009-01-01 25.5
2009-04-01 26
2009-07-01 26
2009-10-01 27.7
2010-01-01 27.9
2010-04-01 28.7
2010-07-01 30
2010-10-01 31
2011-01-01 31.5
2011-04-01 31.8
2011-07-01 32.3
2011-10-01 31.9
2012-01-01 31.2
2012-04-01 32.1
2012-07-01 32.3
2012-10-01 31.3
2013-01-01 31.1
2013-04-01 31.8
2013-07-01 32.3
2013-10-01 33.4
2014-01-01 33.9
2014-04-01 35
2014-07-01 35.7
2014-10-01 36.1
2015-01-01 36.1
2015-04-01 37.6
2015-07-01 38.5
2015-10-01 38.6
2016-01-01 39.5
2016-04-01 41.8
2016-07-01 42.3
2016-10-01 42.5
2017-01-01 41.2
2017-04-01 42.0
2017-07-01 42.9
2017-10-01 43.6
2018-01-01 44.8
2018-04-01 44.6