Quarterly Percent
1998-01-01 36
1998-04-01 35.7
1998-07-01 36.6
1998-10-01 36.8
1999-01-01 38.2
1999-04-01 39.2
1999-07-01 38.8
1999-10-01 39
2000-01-01 39.9
2000-04-01 41.2
2000-07-01 42.2
2000-10-01 43.4
2001-01-01 43.6
2001-04-01 45.5
2001-07-01 46.9
2001-10-01 46.9
2002-01-01 46.2
2002-04-01 47.8
2002-07-01 48.8
2002-10-01 48.6
2003-01-01 48.3
2003-04-01 49.6
2003-07-01 51
2003-10-01 49.6
2004-01-01 50.4
2004-04-01 51.1
2004-07-01 51.3
2004-10-01 51
2005-01-01 51.1
2005-04-01 52.7
2005-07-01 53.7
2005-10-01 53.4
2006-01-01 53.4
2006-04-01 54.2
2006-07-01 54.9
2006-10-01 55.7
2007-01-01 55
2007-04-01 55.4
2007-07-01 55.1
2007-10-01 54.7
2008-01-01 55.4
2008-04-01 56.8
2008-07-01 57
2008-10-01 56.6
2009-01-01 55.6
2009-04-01 55.8
2009-07-01 55.8
2009-10-01 54.6
2010-01-01 55.1
2010-04-01 56.7
2010-07-01 56.6
2010-10-01 56.6
2011-01-01 55.9
2011-04-01 57.5
2011-07-01 57.2
2011-10-01 57.2
2012-01-01 57.5
2012-04-01 58.3
2012-07-01 58.7
2012-10-01 58.2
2013-01-01 57.6
2013-04-01 59
2013-07-01 59.2
2013-10-01 58.4
2014-01-01 58.7
2014-04-01 59.4
2014-07-01 58.9
2014-10-01 59.5
2015-01-01 59.2
2015-04-01 59.5
2015-07-01 60.8
2015-10-01 60.4
2016-01-01 60.5
2016-04-01 61.2
2016-07-01 62.4
2016-10-01 61.5
2017-01-01 61.7
2017-04-01 62.4
2017-07-01 62.4
2017-10-01 63.7
2018-01-01 65.2
2018-04-01 65.1