Quarter	Percent, Seasonally Adjusted
1999-01-01	27.8794214354109
1999-04-01	28.1370138385537
1999-07-01	27.9980763026633
1999-10-01	28.2798610425958
2000-01-01	29.0218284161827
2000-04-01	28.8739345002839
2000-07-01	28.9034794649783
2000-10-01	28.4173673903679
2001-01-01	28.5663976010124
2001-04-01	29.0898969711250
2001-07-01	28.3006226890335
2001-10-01	27.8180410722147
2002-01-01	29.2378404366426
2002-04-01	28.6900350829011
2002-07-01	28.4903637367845
2002-10-01	29.0296067262845
2003-01-01	28.4291830116655
2003-04-01	28.5031208479120
2003-07-01	28.4718469265831
2003-10-01	28.9650072164362
2004-01-01	28.4748674903009
2004-04-01	28.2752846577896
2004-07-01	27.7805274453142
2004-10-01	29.0362690259915
2005-01-01	28.4106441729653
2005-04-01	28.7226944789726
2005-07-01	29.3864059640410
2005-10-01	29.0842514247680
2006-01-01	29.2122821713673
2006-04-01	29.1271734325030
2006-07-01	28.8242392729482
2006-10-01	28.4139984708380
2007-01-01	28.2276847096626
2007-04-01	28.8940692530456
2007-07-01	29.4660498447096
2007-10-01	29.6244222979902
2008-01-01	29.4399324843138
2008-04-01	28.6266819855998
2008-07-01	28.3972285158031
2008-10-01	28.6591588535142
2009-01-01	29.1178050883707
2009-04-01	29.5781621220910
2009-07-01	29.6629065501845
2009-10-01	30.8447147109461
2010-01-01	30.3335292845890
2010-04-01	30.6171747176336
2010-07-01	31.5976110042250
2010-10-01	31.1343625554981
2011-01-01	31.2361446695625
2011-04-01	31.5598363841920
2011-07-01	31.7172089624632
2011-10-01	31.9266966996032
2012-01-01	32.1203309568758
2012-04-01	32.3100081153708
2012-07-01	33.1721885259965
2012-10-01	32.8186139706806
2013-01-01	32.9852807506446
2013-04-01	33.7937903332437
2013-07-01	33.8769229107023
2013-10-01	34.3824368411466
2014-01-01	33.9802712852753
2014-04-01	33.9325162983823
2014-07-01	33.1545606890966
2014-10-01	33.1623632710435
2015-01-01	33.2209208238256
2015-04-01	33.2851319396177
2015-07-01	33.6063761593180
2015-10-01	32.9204109510967
2016-01-01	32.4543432019128
2016-04-01	31.9681653742242
2016-07-01	32.1930773958434
2016-10-01	32.2937996702339
2017-01-01	33.6184786643092
2017-04-01	33.6087844754333
2017-07-01	33.6419242215737
2017-10-01	33.5925281543399
2018-01-01	33.8565736750900
2018-04-01	33.1393361972924