Quarterly Percent
1999-04-01 58.8
2000-01-01 56.2
2000-04-01 58.1
2000-07-01 59.8
2000-10-01 55.2
2001-01-01 56.8
2001-04-01 53
2001-07-01 53
2001-10-01 52.3
2002-01-01 54.2
2002-04-01 48.6
2002-07-01 46
2002-10-01 48.3
2003-01-01 49.9
2003-04-01 47.3
2003-07-01 50.6
2003-10-01 48.5
2004-01-01 42.3
2004-04-01 43.9
2004-07-01 46.6
2004-10-01 47.2
2005-01-01 44.1
2005-04-01 42.4
2005-07-01 39.8
2005-10-01 43.1
2006-01-01 43.1
2006-04-01 34.8
2006-07-01 38.5
2006-10-01 41.2
2007-01-01 37.1
2007-04-01 34
2007-07-01 41.1
2007-10-01 42.9
2008-01-01 39.7
2008-04-01 38.1
2008-07-01 37.9
2008-10-01 34.6
2009-01-01 33.1
2009-04-01 34.5
2009-07-01 33.6
2009-10-01 34.9
2010-01-01 34.9
2010-04-01 35.8
2010-07-01 34.2
2010-10-01 38.1
2011-01-01 36.1
2011-04-01 35.8
2011-07-01 38.2
2011-10-01 35.6
2012-01-01 33.2
2012-04-01 32.9
2012-07-01 34.2
2012-10-01 39.9
2013-01-01 33
2013-04-01 28.6
2013-07-01 34.6
2013-10-01 37.9
2014-01-01 37.6
2014-04-01 34.6
2014-07-01 29.6
2014-10-01 32.1
2015-01-01 34.8
2015-04-01 31.0
2015-07-01 25.5
2015-10-01 30.9
2016-01-01 31.4
2016-04-01 26.5
2016-07-01 26.6
2016-10-01 29.9
2017-01-01 29.1
2017-04-01 29.6
2017-07-01 27.7
2017-10-01 24.1
2018-01-01 24.7
2018-04-01 27.1
