Quarter	Percent, Seasonally Adjusted
2005-01-01	18.8789208596217
2005-04-01	18.7009822500008
2005-07-01	18.8320490966280
2005-10-01	18.2690540668597
2006-01-01	18.0792400212755
2006-04-01	17.6144743348856
2006-07-01	17.4827444206787
2006-10-01	17.0857043889225
2007-01-01	16.6186857525530
2007-04-01	16.0309557807131
2007-07-01	15.3029765993952
2007-10-01	15.3724623108199
2008-01-01	15.0440112388153
2008-04-01	15.6990804335567
2008-07-01	15.8149225385263
2008-10-01	16.4383330079505
2009-01-01	18.2684818225681
2009-04-01	18.8042813953735
2009-07-01	19.5522428327053
2009-10-01	19.2452499365363
2010-01-01	19.8207564651222
2010-04-01	20.4031607181238
2010-07-01	20.1497659852059
2010-10-01	20.5510730844582
2011-01-01	20.9303315951102
2011-04-01	20.5976652363489
2011-07-01	20.7165755134509
2011-10-01	21.1851924370166
2012-01-01	22.1813889728771
2012-04-01	22.5952417141232
2012-07-01	23.3702438357086
2012-10-01	23.7300679819278
2013-01-01	23.5384061230555
2013-04-01	23.8101404594861
2013-07-01	23.6944863836987
2013-10-01	23.9650412153568
2014-01-01	24.0016513214163
2014-04-01	23.0994101862569
2014-07-01	22.9717005236224
2014-10-01	22.7609251567067
2015-01-01	22.1661334135901
2015-04-01	21.8377187528556
2015-07-01	21.5896461582403
2015-10-01	20.8926846150315
2016-01-01	20.7021379701763
2016-04-01	20.5141739706456
2016-07-01	20.3436077293651
2016-10-01	19.7191174352213
2017-01-01	18.7560347091685
2017-04-01	18.5432939328875
2017-07-01	17.7584305019492
2017-10-01	17.4331482420613
2018-01-01	16.9813106340246
2018-04-01	16.4759404020404