Quarterly Percent
1999-01-01 26.1
1999-04-01 22.9
1999-07-01 21.9
1999-10-01 22.3
2000-01-01 21.8
2000-04-01 19.6
2000-07-01 20.2
2000-10-01 20.2
2001-01-01 17.1
2001-04-01 16.4
2001-07-01 16.3
2001-10-01 16.8
2002-01-01 18.4
2002-04-01 16.8
2002-07-01 18.7
2002-10-01 20.1
2003-01-01 20.1
2003-04-01 19.2
2003-07-01 19.1
2003-10-01 19.6
2004-01-01 19.4
2004-04-01 19.4
2004-07-01 18.4
2004-10-01 17.7
2005-01-01 18.5
2005-04-01 17.4
2005-07-01 15
2005-10-01 16
2006-01-01 16.7
2006-04-01 15.3
2006-07-01 13.9
2006-10-01 14.1
2007-01-01 14.1
2007-04-01 15.1
2007-07-01 15.2
2007-10-01 16.5
2008-01-01 19.3
2008-04-01 21.9
2008-07-01 23.7
2008-10-01 29.6
2009-01-01 36.2
2009-04-01 40
2009-07-01 39.4
2009-10-01 40.8
2010-01-01 43.2
2010-04-01 43.3
2010-07-01 41.4
2010-10-01 44.5
2011-01-01 47.4
2011-04-01 48.1
2011-07-01 47
2011-10-01 50.2
2012-01-01 53.8
2012-04-01 54.3
2012-07-01 52.7
2012-10-01 55.9
2013-01-01 59.1
2013-04-01 56.3
2013-07-01 54
2013-10-01 55.6
2014-01-01 56
2014-04-01 53.8
2014-07-01 52.3
2014-10-01 51.6
2015-01-01 52.6
2015-04-01 50.0
2015-07-01 46.7
2015-10-01 45.4
2016-01-01 45.7
2016-04-01 45.8
2016-07-01 41.9
2016-10-01 42.8
2017-01-01 42.6
2017-04-01 40.6
2017-07-01 37.4
2017-10-01 37.8
2018-01-01 38.0
2018-04-01 35.5
2018-07-01 34.0
