Quarterly Percent
1999-04-01 48.8
2000-01-01 46.5
2000-04-01 52.7
2000-07-01 48.8
2000-10-01 48.1
2001-01-01 51.5
2001-04-01 48.2
2001-07-01 46.3
2001-10-01 45.8
2002-01-01 46.7
2002-04-01 44.7
2002-07-01 44.6
2002-10-01 44.3
2003-01-01 45.5
2003-04-01 44.9
2003-07-01 46.8
2003-10-01 42
2004-01-01 41.4
2004-04-01 45.7
2004-07-01 45.4
2004-10-01 42.4
2005-01-01 40.7
2005-04-01 41.2
2005-07-01 41.3
2005-10-01 41.2
2006-01-01 40.2
2006-04-01 35.4
2006-07-01 39.8
2006-10-01 40.8
2007-01-01 37
2007-04-01 35.2
2007-07-01 40.3
2007-10-01 38.9
2008-01-01 36.5
2008-04-01 36.7
2008-07-01 35.6
2008-10-01 31.2
2009-01-01 32.8
2009-04-01 34.2
2009-07-01 33.7
2009-10-01 33.2
2010-01-01 36
2010-04-01 36.7
2010-07-01 35.4
2010-10-01 34.9
2011-01-01 34
2011-04-01 36.4
2011-07-01 36.9
2011-10-01 32.3
2012-01-01 33.7
2012-04-01 34.7
2012-07-01 34.8
2012-10-01 36.4
2013-01-01 32.9
2013-04-01 30.4
2013-07-01 34.4
2013-10-01 35.7
2014-01-01 36.2
2014-04-01 32.3
2014-07-01 29.9
2014-10-01 31
2015-01-01 33.6
2015-04-01 32.8
2015-07-01 27.6
2015-10-01 31.2
2016-01-01 32.8
2016-04-01 26.0
2016-07-01 26.4
2016-10-01 31.0
2017-01-01 28.9
2017-04-01 28.1
2017-07-01 27.8
2017-10-01 26.4
2018-01-01 27.4
2018-04-01 28.4