Quarter	Percent, Seasonally Adjusted
1998-04-01	4.15525114155251
1999-04-01	3.55477192583324
2000-04-01	3.14691294681033
2001-04-01	3.46910501523968
2002-04-01	3.10970968794172
2003-04-01	4.50397251449431
2004-04-01	4.77923468022478
2005-04-01	5.10586620201700
2006-04-01	4.72252561502054
2007-04-01	4.53469219682932
2008-04-01	3.98467814147846
2009-04-01	4.54279015240328
2010-01-01	5.36832037782135
2010-04-01	5.33553700926599
2010-07-01	5.32411011029591
2010-10-01	4.80070010798683
2011-01-01	4.94340992278858
2011-04-01	4.18270747552662
2011-07-01	5.11687389104868
2011-10-01	5.01326547880654
2012-01-01	4.60580315939444
2012-04-01	4.72113631929957
2012-07-01	4.58270439389581
2012-10-01	5.07872795294776
2013-01-01	5.14949804338188
2013-04-01	5.05308165169806
2013-07-01	4.77201084241027
2013-10-01	4.78671522719738
2014-01-01	5.19880907116114
2014-04-01	4.98463023879515
2014-07-01	5.05267442826224
2014-10-01	4.80326990045263
2015-01-01	4.41698813193607
2015-04-01	4.77378382154298
2015-07-01	5.19798493648373
2015-10-01	5.34644283245366
2016-01-01	5.10661044628052
2016-04-01	4.97839193111106
2016-07-01	5.02345071784488
2016-10-01	5.00970995160208
2017-01-01	5.11722792122090
2017-04-01	5.04101688982308
2017-07-01	5.13326991008877
2017-10-01	5.05010698687548
2018-01-01	5.36911877066498
2018-04-01	5.47371060496443