Quarter	Percent, Seasonally Adjusted
1998-04-01	12.14805146373300
1999-04-01	12.50349824310460
2000-04-01	12.64564237999070
2001-04-01	12.11895217675030
2002-04-01	11.67011327510110
2003-04-01	11.92567567567570
2004-04-01	11.76344481195640
2005-04-01	11.52954101562500
2006-04-01	11.65231677264290
2007-04-01	11.12422811478390
2008-04-01	10.22825859335270
2009-04-01	10.00795920172150
2010-01-01	11.93924585036830
2010-04-01	11.62499825950350
2010-07-01	11.53199056121120
2010-10-01	11.56966608893000
2011-01-01	11.04325948943660
2011-04-01	11.00614453670910
2011-07-01	11.17785518236530
2011-10-01	10.68937297103880
2012-01-01	10.77463898443670
2012-04-01	10.58837821024670
2012-07-01	10.47526692331990
2012-10-01	10.46419651715950
2013-01-01	10.87740337201750
2013-04-01	10.99376649612980
2013-07-01	10.77016449534550
2013-10-01	10.57759660891940
2014-01-01	10.45887838986780
2014-04-01	10.19027592165480
2014-07-01	10.07704723826650
2014-10-01	9.50324562193449
2015-01-01	9.69517321451925
2015-04-01	9.80434688343916
2015-07-01	10.16255545723760
2015-10-01	9.51472367835898
2016-01-01	8.84085946988590
2016-04-01	9.64147283515060
2016-07-01	9.82603447389924
2016-10-01	9.38164444339836
2017-01-01	9.35212778346258
2017-04-01	9.74154434388540
2017-07-01	9.80198240251593
2017-10-01	9.52267733410430
2018-01-01	9.25069730901431
2018-04-01	9.32713165651132