Quarterly Percent
1999-01-01 19.1
1999-04-01 18.8
1999-07-01 18.7
1999-10-01 18.7
2000-01-01 19.2
2000-04-01 20
2000-07-01 20.5
2000-10-01 20.9
2001-01-01 21.7
2001-04-01 21.4
2001-07-01 21.6
2001-10-01 22.1
2002-01-01 22
2002-04-01 22.6
2002-07-01 22.1
2002-10-01 22.7
2003-01-01 23.1
2003-04-01 23.7
2003-07-01 23.8
2003-10-01 24.4
2004-01-01 24.8
2004-04-01 24.8
2004-07-01 24.7
2004-10-01 25.5
2005-01-01 26.8
2005-04-01 27.6
2005-07-01 27.7
2005-10-01 28.5
2006-01-01 29.2
2006-04-01 28.9
2006-07-01 28.1
2006-10-01 29.5
2007-01-01 29.9
2007-04-01 30.5
2007-07-01 29.7
2007-10-01 30.7
2008-01-01 30.8
2008-04-01 31.4
2008-07-01 31
2008-10-01 31.5
2009-01-01 31.7
2009-04-01 32.4
2009-07-01 32.1
2009-10-01 32.4
2010-01-01 32.6
2010-04-01 32.5
2010-07-01 33.2
2010-10-01 34.1
2011-01-01 34.4
2011-04-01 36.1
2011-07-01 36.3
2011-10-01 35.9
2012-01-01 35.5
2012-04-01 36.2
2012-07-01 36.5
2012-10-01 35.8
2013-01-01 35.3
2013-04-01 36.2
2013-07-01 36.6
2013-10-01 37.1
2014-01-01 37.3
2014-04-01 37.4
2014-07-01 37.6
2014-10-01 38.9
2015-01-01 39.4
2015-04-01 39.8
2015-07-01 39.7
2015-10-01 41.7
2016-01-01 42.2
2016-04-01 42.4
2016-07-01 43.1
2016-10-01 43.2
2017-01-01 43.3
2017-04-01 43.5
2017-07-01 43.3
2017-10-01 44.1
2018-01-01 43.9
2018-04-01 45.0
2018-07-01 45.2
