Quarterly Percent
1998-01-01 23
1998-04-01 21.1
1998-07-01 21.1
1998-10-01 22
1999-01-01 23.7
1999-04-01 22.8
1999-07-01 22.6
1999-10-01 23.1
2000-01-01 22.7
2000-04-01 21.9
2000-07-01 21.1
2000-10-01 20.8
2001-01-01 21.8
2001-04-01 21
2001-07-01 21.2
2001-10-01 22.5
2002-01-01 21
2002-04-01 18.7
2002-07-01 18.9
2002-10-01 19.7
2003-01-01 19.4
2003-04-01 17.8
2003-07-01 18.6
2003-10-01 19.3
2004-01-01 20.8
2004-04-01 18.7
2004-07-01 17.6
2004-10-01 18.7
2005-01-01 18.9
2005-04-01 17.6
2005-07-01 19.7
2005-10-01 19.5
2006-01-01 17.9
2006-04-01 17.1
2006-07-01 16.7
2006-10-01 18.6
2007-01-01 17.9
2007-04-01 13.7
2007-07-01 14.1
2007-10-01 16.3
2008-01-01 18
2008-04-01 15
2008-07-01 16.1
2008-10-01 18.5
2009-01-01 19.9
2009-04-01 18.1
2009-07-01 18.1
2009-10-01 22
2010-01-01 24.2
2010-04-01 25
2010-07-01 26.1
2010-10-01 32.2
2011-01-01 34.2
2011-04-01 36.9
2011-07-01 40
2011-10-01 44.3
2012-01-01 46.2
2012-04-01 46.9
2012-07-01 48.8
2012-10-01 51.9
2013-01-01 55.1
2013-04-01 54.5
2013-07-01 53
2013-10-01 52.5
2014-01-01 52.6
2014-04-01 47.1
2014-07-01 43.3
2014-10-01 46.6
2015-01-01 47.5
2015-04-01 45.4
2015-07-01 43.7
2015-10-01 44.1
2016-01-01 47.4
2016-04-01 46.1
2016-07-01 41.7
2016-10-01 42.2
2017-01-01 42.6
2017-04-01 39.3
2017-07-01 36.4
2017-10-01 39.2
2018-01-01 40.7
2018-04-01 35.4
