Quarterly Percent
1999-01-01 31.6
2000-01-01 39.6
2000-04-01 37.2
2000-07-01 35.8
2000-10-01 36.5
2001-01-01 39.9
2001-04-01 40.6
2001-07-01 41.7
2001-10-01 41.9
2002-01-01 43
2002-04-01 42.4
2002-07-01 44.8
2002-10-01 43
2003-01-01 43.2
2003-04-01 42.8
2003-07-01 43.4
2003-10-01 43
2004-01-01 45.2
2004-04-01 41.5
2004-07-01 40.1
2004-10-01 41
2005-01-01 42.2
2005-04-01 39.5
2005-07-01 35.8
2005-10-01 35.9
2006-01-01 35
2006-04-01 30.4
2006-07-01 30.3
2006-10-01 30.9
2007-01-01 27.5
2007-04-01 22.8
2007-07-01 23.8
2007-10-01 20.9
2008-01-01 21
2008-04-01 19.5
2008-07-01 19.1
2008-10-01 19.8
2009-01-01 20
2009-04-01 19.9
2009-07-01 22.9
2009-10-01 22.1
2010-01-01 24.9
2010-04-01 25
2010-07-01 25.8
2010-10-01 26.1
2011-01-01 28.2
2011-04-01 26.4
2011-07-01 30.3
2011-10-01 30.3
2012-01-01 30.5
2012-04-01 28.1
2012-07-01 29.7
2012-10-01 31.5
2013-01-01 32.7
2013-04-01 28.5
2013-07-01 29.5
2013-10-01 29.6
2014-01-01 28.7
2014-04-01 24.1
2014-07-01 25.5
2014-10-01 23.6
2015-01-01 23.3
2015-04-01 18.9
2015-07-01 20.8
2015-10-01 20.6
2016-01-01 20.5
2016-04-01 16.6
2016-07-01 18.5
2016-10-01 16.2
2017-01-01 16.0
2017-04-01 13.5
2017-07-01 15.6
2017-10-01 15.4
2018-01-01 12.5
2018-04-01 9.2
