Quarterly Percent
1999-01-01 10.5
1999-04-01 10.6
1999-07-01 10.1
1999-10-01 10.1
2000-01-01 10.5
2000-04-01 10.2
2000-07-01 9.3
2000-10-01 9.3
2001-01-01 9.9
2001-04-01 10
2001-07-01 10
2001-10-01 9.2
2002-01-01 9.5
2002-04-01 9.1
2002-07-01 9.5
2002-10-01 10
2003-01-01 10.3
2003-04-01 11.1
2003-07-01 11.5
2003-10-01 12.1
2004-01-01 11.4
2004-04-01 12.2
2004-07-01 13.1
2004-10-01 13.7
2005-01-01 14
2005-04-01 15.3
2005-07-01 15.9
2005-10-01 17.1
2006-01-01 17.5
2006-04-01 19
2006-07-01 19.4
2006-10-01 19.8
2007-01-01 19.9
2007-04-01 21.1
2007-07-01 21.2
2007-10-01 22.5
2008-01-01 22.7
2008-04-01 23.4
2008-07-01 25.5
2008-10-01 25.1
2009-01-01 24.9
2009-04-01 26.4
2009-07-01 27.1
2009-10-01 26
2010-01-01 27.9
2010-04-01 28.7
2010-07-01 29.2
2010-10-01 29
2011-01-01 29.6
2011-04-01 31.2
2011-07-01 32.3
2011-10-01 32.6
2012-01-01 33.1
2012-04-01 33.7
2012-07-01 33.7
2012-10-01 34
2013-01-01 35.7
2013-04-01 35.3
2013-07-01 35.6
2013-10-01 36.3
2014-01-01 35.3
2014-04-01 36.3
2014-07-01 38.3
2014-10-01 39
2015-01-01 39.2
2015-04-01 40.8
2015-07-01 41.9
2015-10-01 42.0
2016-01-01 41.2
2016-04-01 42.7
2016-07-01 44.5
2016-10-01 45.6
2017-01-01 48.1
2017-04-01 49.6
2017-07-01 49.8
2017-10-01 50.9
2018-01-01 49.9
2018-04-01 49.6