Quarter	Percent, Seasonally Adjusted
1999-04-01	3.14490645533430
2000-04-01	2.66499372647428
2001-04-01	2.49090053730161
2002-04-01	2.92338956491933
2003-04-01	4.11555491035784
2004-04-01	4.31640766609469
2005-04-01	4.43616253907189
2006-04-01	3.99981043552438
2007-04-01	3.65098286702662
2008-04-01	3.35055080678338
2009-04-01	4.11574406901510
2010-01-01	5.06910664181523
2010-04-01	4.94014083755500
2010-07-01	4.75931641508813
2010-10-01	4.46363766191820
2011-01-01	4.42149367801036
2011-04-01	4.16649120104350
2011-07-01	4.43854389604582
2011-10-01	4.60129552681534
2012-01-01	4.25425325954274
2012-04-01	4.30991846693772
2012-07-01	4.48254680132387
2012-10-01	4.88895865113647
2013-01-01	4.81647475741046
2013-04-01	4.80799915901050
2013-07-01	4.71481447847776
2013-10-01	4.64969157329060
2014-01-01	4.99017710194145
2014-04-01	4.96166020917521
2014-07-01	4.86824787046080
2014-10-01	4.49095487450536
2015-01-01	4.42079910486241
2015-04-01	4.71599654308636
2015-07-01	4.96201434508436
2015-10-01	5.10109937490756
2016-01-01	5.00021936440692
2016-04-01	4.92319227615221
2016-07-01	4.92880032227009
2016-10-01	4.81982913705701
2017-01-01	4.93833191620609
2017-04-01	4.67794957571653
2017-07-01	4.81094638280146
2017-10-01	4.76039903573032
2018-01-01	4.90707389814359
2018-04-01	4.91376871219861