Quarterly Percent
1999-01-01 22.4
1999-04-01 23.4
1999-07-01 21.2
1999-10-01 20.9
2000-01-01 21.3
2000-04-01 22.3
2000-07-01 24
2000-10-01 23.4
2001-01-01 24.8
2001-04-01 23.4
2001-07-01 26.7
2001-10-01 27
2002-01-01 25.7
2002-04-01 25.9
2002-07-01 23.9
2002-10-01 22.3
2003-01-01 23.1
2003-04-01 22.7
2003-07-01 22.2
2003-10-01 25.9
2004-01-01 26.6
2004-04-01 30.1
2004-07-01 30.4
2004-10-01 28.9
2005-01-01 28.5
2005-04-01 31.2
2005-07-01 31.8
2005-10-01 31.3
2006-01-01 32.4
2006-04-01 33.6
2006-07-01 32.8
2006-10-01 31.5
2007-01-01 30.9
2007-04-01 34.9
2007-07-01 35.1
2007-10-01 32.9
2008-01-01 31.4
2008-04-01 33.6
2008-07-01 33.4
2008-10-01 32.7
2009-01-01 32.7
2009-04-01 36.4
2009-07-01 37.3
2009-10-01 35.9
2010-01-01 35.2
2010-04-01 35.5
2010-07-01 35.7
2010-10-01 33.8
2011-01-01 30
2011-04-01 30.6
2011-07-01 32.5
2011-10-01 31.7
2012-01-01 31.3
2012-04-01 32.8
2012-07-01 33.2
2012-10-01 34.3
2013-01-01 32
2013-04-01 34.2
2013-07-01 34.2
2013-10-01 33.6
2014-01-01 33
2014-04-01 36.7
2014-07-01 36.3
2014-10-01 35.7
2015-01-01 35.3
2015-04-01 38.2
2015-07-01 37.2
2015-10-01 35.7
2016-01-01 38.2
2016-04-01 39.5
2016-07-01 37.6
2016-10-01 38.9
2017-01-01 40.5
2017-04-01 43.5
2017-07-01 42.8
2017-10-01 44.2
2018-01-01 44.4
2018-04-01 47.6