Quarter	Percent, Seasonally Adjusted
1998-04-01	4.69119136010800
1999-04-01	6.55509065550906
2000-04-01	5.78345662407532
2001-04-01	5.73686018550326
2002-04-01	7.13337757133378
2003-04-01	8.27042993107975
2004-04-01	8.02944128471061
2005-04-01	8.45165652467884
2006-04-01	7.93147208121827
2007-04-01	6.89439047320589
2008-04-01	6.67938931297710
2009-04-01	7.98577432913029
2010-01-01	7.91042626961326
2010-04-01	8.77082459648513
2010-07-01	7.47831693651279
2010-10-01	6.99693392596995
2011-01-01	7.22847940599641
2011-04-01	8.11683159309998
2011-07-01	7.27533609142728
2011-10-01	7.44207576080536
2012-01-01	7.44037263104796
2012-04-01	7.30008453100278
2012-07-01	9.13714755281119
2012-10-01	10.58429109892480
2013-01-01	9.00047494568592
2013-04-01	7.98989826609842
2013-07-01	8.09974504701289
2013-10-01	9.75117318131494
2014-01-01	9.97210691558156
2014-04-01	9.64376882261836
2014-07-01	8.18963522860199
2014-10-01	6.69169288166459
2015-01-01	7.68112190299886
2015-04-01	9.32090483233029
2015-07-01	9.05451452491856
2015-10-01	10.84601219417150
2016-01-01	9.84411802818544
2016-04-01	8.07645530917739
2016-07-01	8.95930843317739
2016-10-01	8.13039582934484
2017-01-01	8.28862244275882
2017-04-01	7.96268671133647
2017-07-01	8.90268225552280
2017-10-01	7.41542421141049
2018-01-01	8.14535185994000
2018-04-01	8.09609524069145